Dought & clear, - Can he pray in the clothes he slept in?.

Do the clothes you wear to sleep become impure (so you are not allowed
to pray Salat in them.
Praise be to Allaah.
Firstly:
The basic principle with regard to clothes is that they are taahir
(pure), unless any najaasah (impurity) has gotten onto them, in which
case they must be purified.
Merely sleeping in clothes does not make them najis (impure); rather
they remain pure until it becomes certain that any impurity has gotten
onto them.
Shaykh Ibn 'Uthaymeen said: The basic principle with regard to a
person wearing clothes is that he (and they) are pure so long as he is
not certain that any impurity has gotten onto his body or clothes.
This basic principle is supported by the words of the Prophet
(blessings and peace of Allah be upon him) when a man complained to
him that he felt something during his prayer – referring to breaking
wind. He said: "Do not stop (praying) unless you hear a sound or
notice a smell." If the individual is not certain about that, then the
basic principle is that he remains pure. He may think it most likely
that his clothes have become contaminated with impurity, but so long
as he is not certain about it, the basic principle is that he remains
pure. End quote.
Majmoo' Fataawa Ibn 'Uthaymeen, 11/107
For more information please see the answer to question no. 12720
Secondly:
It is permissible to pray in clothes in which one has slept, so long
as they are pure and cover the 'awrah, although it is better and more
perfect to wear beautiful clothes that look good for prayer. That is
in obedience to the command of Allah, may He be exalted, in the verse
(interpretation of the meaning):"O Children of Adam! Take your
adornment (by wearing your clean clothes), while praying" [al-A'raaf
7:31].
Shaykh Ibn 'Uthaymeen (may Allah have mercy on him) was asked about
the ruling on praying in nightclothes and attending gatherings wearing
them. He said: There is nothing wrong with praying in nightclothes if
they are pure, whether one comes to the mosque wearing them or not,
unless those clothes will attract attention and criticism, and people
will talk about him in their gatherings because of that. People should
avoid anything that may be a cause of people backbiting about them.
End quote.
Majmoo' Fataawa Ibn 'Uthaymeen, 12/362
And Allah knows best.

Dought & clear, - If he does ghusl following a wet dream, maniy continues to comeout of him during the prayer.

May Allah reward you with good for answering my question, but I think
that it needs further explanation of the issue of sprinkling hot water
on the private part, because the wet dream occurred at the time of
'Asr prayer, and I have a problem, which is that maniy and even madhiy
continue to come out for a considerable period after they are first
emitted. It often happens with me that one of them is emitted at the
time of prayer, whether that is because of thinking or because of a
wet dream, but in order not to miss the prayer, I sprinkle hot water
(on my private part) so that whatever is left will come out. Please
note that I do not feel any desire when I use this method. Now I am
going to make up the fast of that day that I told you about, in sha
Allah, but what should I do if maniy continues to come out whilst I am
praying? Should I pray in that case?
Praise be to Allah.
Firstly:
We appreciate this further explanation and we ask Allah, may He be
exalted, to help us and you avoid reprehensible words and actions.
Secondly:
If it does not come out continually all the time, then it does not
come under the ruling on incontinence; rather it invalidates wudoo' as
soon as it comes out, even if that happens during the prayer. The one
who is faced with that should stop praying, do wudoo' and then repeat
the prayer. He also has to do wash off whatever has gotten onto him if
what came out was urine or madhiy, because they are both najis
(impure), unlike maniy which is taahir (pure).
But the one who is praying should not interrupt his prayer unless he
is certain that something has come out of him, because the basic
principle is that he remains in a state of purity, and that which is
certain cannot be changed by mere doubt or uncertainty.
If maniy came out of a person and he did ghusl for that, then more
came out but without desire, then he does not have to do ghusl again,
but it does invalidate his wudoo'.
See:ash-Sharh al-Mumti', 1/337
The scholars of the Standing Committee for Issuing Fatwas were asked:
If I do wudoo' for every prayer and then go out to the mosque, I
always emit madhiy; can I pray, knowing that if I take a bath and go
out, madhiy will come out without desire. So do I have to take a bath
every time?
They replied:
If that comes out of you continually, then it comes under the same
ruling as incontinence, and you have to do wudoo' for every prayer
when the time for it begins, then your prayer will be valid even if it
comes out whilst you are praying. If it does not happen frequently
with you, then you have to do wudoo' as prescribed for prayer, after
washing the penis and testicles. But you do not have to do ghusl (take
a bath) for that. End quote.
Fataawa al-Lajnah ad-Daa'imah, 5/413
Shaykh Ibn 'Uthaymeen (may Allah have mercy on him) was asked: When I
finish wudoo' and go to pray, I feel that a drop of urine comes out of
the penis; what should I do?
He replied: What you should do is pay no attention to that and ignore
it, as the Muslim scholars have enjoined. Do not pay any attention to
it and do not go and look at your penis to see if anything came out or
not. If you seek refuge with Allah from the accursed Shaytaan and
ignore it, it will go away, by Allah's leave. But if you are
absolutely certain about it, then it is essential to wash whatever the
urine has gotten onto and repeat your wudoo'. Some people, if they
feel any coolness on the head of the penis, think that something has
come out. So if you are certain, then do what I have told you. What
you have mentioned is not incontinence, because it stops and starts,
whereas incontinence is ongoing and continual. But this happens after
movement and one or two drops come out; this is not incontinence,
because once a couple of drops have come out, it stops. In this case,
he should wash it off and do wudoo' again. He should always do this,
and he should be patient and seek reward with Allah.
End quote fromLiqa' al-Baab al-Maftooh, 15/184
And Allah knows best.

Imam Taqi (as): Answering Fiqh questions is not easy

Mamun al-Rashid son of Harun al-Rashid called the young 9th Imam, Imam
Taqi (as) to Baghdad from Medina and offered his daughter. This
infuriated his family (Abbasid). To prove to them the excellence of
Imam Taqi (as) even at a young age of Twelve year, he arranged a
meeting between Imam Taqi (as) and the most learned of men at that
time - Yahya ibn Aaktham, the Chief Justice of the Abbasid Empire.
It was a grand occasion with some 900 other scholars present. The
court was full of people from near and far everyone wanted to see what
the outcome would be.
Yahya asked the first question which was: What would be the kaffara of
a person in Ihram who hunted and killed his prey?
Imam Taqi (as) answered that he would have to be given a lot more
detail before he could even begin to answer the question.
For example:
Was the person in Ihram Baligh or not?
Was the person a free man or a slave?
Did he know the laws of Sharia on hunting or not?
Was his Ihram for Hajj or Umra?
Did he hunt intentionally or not?
Was this the first time or one of many?
Did the person in Ihram hunt inside the Haram of the Holy Kaaba or outside.
Did he hunt in the day or at night?
Was the prey big or small?
Was the prey a bird or an animal?
Was the person repentant or not?
Yahya was shocked and did not know what to say.
Mamun al-Rashid asked Imam Taqi (as) to answer, Yahya's question for
all of the above conditions, which Imam Taqi (as) did.
It was then Imam Taqi (as) to ask Yahya a question, which he did and
Yahya could not answer; so Imam Taqi (as) again gave the answer.
Mamun al-Rashid's joy knew no bounds. What he had asserted came true.
Addressing the audience he said, "Did I not tell you that the people
of the Ahlul Baytof the Prophet have been gifted by Allah (SWT) with
limitless knowledge? None can cope with even the children of this
elevated House."
Mamun al-Rashid took the opportunity to offer his daughter Ummul Fazl
to Imam Taqi (as). Imam Taqi (as) read his own Nikah(the khutba of
which is used today) with the Mehr of 500 dirhams. Imam Taqi (as)
wrote a letter to Mamun al-Rashid that he would also give Ummul Fazl
Mehr from the wealth of The World to Come (Aakhira). This was in the
form of 10 duas which were for fulfilling any hajaat (desires). Thus
his title is Al-Jawad (the generous one).
Moral:To answer a fiqh question is not as easy as you may think; this
is why Ulema spend years of their lives learning and researching. And
why we have to do Taqlid of a Marja (Just like we take the advice of a
doctor, when we are ill, we should take the advice of a Marja in
religious affairs).

Imam al-Taqi (as): Allah (SWT) can give you much more

When our 9th Imam, Imam Taqi (as) was only 9 years old, his father our
8th Imam, Imam Ali Ridha (as) was killed by the king Mamun al-Rashid.
Mamun al-Rashid decided that he would try to buy (bribe) Imam Taqi
(as) into his way of life because Imam Taqi (as) was still only a
child.
Mamun al-Rashid took Imam Taqi (as) to his palace and gave him
whatever money could buy, but Imam Taqi (as) was not interested,
because he knew Allah (SWT) could give him much much more.
No matter how much Mamun al-Rashid gave him, Imam Taqi (as) did not do
anything against Allah's (SWT) commands as Mamun al-Rashid wished.
Moral:Whatever anyone gives you always remember that Allah (SWT) can
give you so much more but only if you are a good Muslim and do as
Allah (SWT) tells you.