Dought & clear - He could not do wudoo’ or tayammum in the hospital so he prayed as he was

I went to hospital and stayed there for three days. I was not able to
do wudoo' for prayer. I took a stone with me and did tayammum, but for
Fajr prayer I could not do tayammum; I am paralyzed and I cannot move
at all except with help. I did not want to miss Fajr prayer, so I
imagined myself doing tayammum and prayed Fajr. Also, I was not facing
the direction of the qiblah. Is what I did permissible or not? Do I
have to make up the prayer?.
Praise be to Allaah.
If a person who is sick is not able to do wudoo' and has no one who
can help him to do it, then he may do tayammum, even by wiping his
hands on the wall or the bed, if there is dust on it,or he can keep
with him some dust in a vessel or bag to use for tayammum. If he is
not able to do tayammum, then he may pray as he is.
The same applies with regard to facing the direction of the qiblah.
Whoever is able to do that must do it, but if he is not able to do it,
he may pray as he is, because Allah, may He beexalted, says
(interpretation of the meaning): "Allah burdens not a person beyond
his scope" [al-Baqarah 2:286].
Shaykh Ibn 'Uthaymeen (may Allah have mercy on him) was asked: If a
sick person does not have any dust, can he dotayammum using the wall
or bed, or not?
He replied: If the wall is made of "clean earth", whether it is rocks
or bricks, then it is permissible to use it for tayammum. But if the
wall is covered with wood or is painted, if there is dust on it, then
it may be used for tayammum and there is nothing wrong with it, and he
will be like one who does tayammum using earth. But if there is no
dust on it, then it does not come under theheading of "earth" and
cannot be used for tayammum.
With regard to the bed, we say: if there is dust on it, it may be used
for tayammum, otherwise it may not because it does not come under the
heading of "earth".
End quote from Fataawa at-Tahaarah, p. 240
The Standing Committee for Issuing Fatwas were asked: I am bedridden
and cannot move; how can I purify myself in order to offer the
prayers, and how can I pray?
They replied:
Firstly: with regard to purification, the Muslim is required to purify
himself with water. If he is unable to use it because of sickness or
some other reason, then he should do tayammumusing clean earth. If he
isnot able to do that, then the requirement of purification is waived
and he may pray as he is.Allah, may He be exalted,says (interpretation
of the meaning): "So keep your duty to Allaah and fear Him as much as
you can"[al-Taghaabun 64:16] and "and [Allaah] has not laid upon you
in religion any hardship"[al-Hajj 22:78]. With regard to what comes
out, of urine and stools, it is sufficient to clean oneself with a
stone or clean tissue, wiping the place three times or more until it
is clean.
Secondly:
With regard to prayer, the one who is sick is required to pray
standing; if he cannot dothat then he may pray sitting; and if he
cannot do that then he may pray on his side, becauseof the report
narrated from 'Imraan ibn Husayn, according to which the Prophet
(blessings and peace of Allah be upon him) said: "Pray standing, and
if you cannot then sitting, and if you cannot then on your side." And
Allah, may He be glorified and exalted, says (interpretation of the
meaning): "So keep yourduty to Allaah and fear Him as much as you
can"[al-Taghaabun 64:16].
End quote from al-Fataawa al-Muta'alliqah bi't-Tibb wa Ahkaam al-Marda, p. 78
If you prayed Fajr without wudoo' or tayammum, and withoutfacing
towards the qiblah, because you were not able to do that,or there was
no one to help you do wudoo' or tayammum, or turn you towards the
qiblah, thenyour prayer is valid and you do not have to repeat it.
Similarly you do not have to imagine yourself doing tayammum, because
thisis not prescribed in Islamand is of no benefit.
But if you were able to do tayammum or wudoo', and face towards the
qiblah, withthe help of someone else, but you failed to ask for help,
then you have fallen short in attaining purification which is a
condition of prayer being valid, and you have to repeat the prayer
that you offered without purification or facing towards the qiblah.
And Allah knows best.