Staying up on Laylat al-Qadr and the ruling on celebrating it

How should we spend thenight of Laylat al-Qadr? Is it by praying,
reading Qur'aan and the Seerah (Prophet's biography), listening to
sermons and lessons and celebrating that in the mosque?.
Praise be to Allaah.
Firstly:
The Messenger of Allaah (peace and blessings of Allaah be upon him)
used to strive hard in worship during the last ten nights of Ramadaan
as he did not do at other times, praying and reading Qur'aan.
Al-Bukhaari and Muslim narrated from 'Aa'ishah (may Allaah be pleased
with her) that when the last ten days of Ramadaan began, the Prophet
(peace and blessings of Allaah be upon him) would stay up at night,
wake his family and tie his lower garmenttight. According to Ahmadand
Muslim: he would strive hard in worship during the last ten nights of
Ramadaan as he did not do at other times.
Secondly:
The Prophet (peace and blessings of Allaah be upon him) urged us to
spend the night of Laylat al-Qadr in prayer out of faith and in the
hope of reward. It was narrated from Abu Hurayrah (may Allaah be
pleased with him) that the Prophet (peace and blessings of Allaah be
upon him) said: "Whoever spends the night of Laylat al-Qadr in prayer
out of faith and in the hope of reward, will be forgiven his previous
sins."
This was narrated by the group apart from Ibn Maajah. This hadeeth
indicates that it is prescribed to stay up and spend this night in
prayer.
Thirdly:
One of the best du'aa's that can be recited on Laylat al-Qadr is that
which the Prophet (peace and blessings of Allaah be upon him) taught
'Aa'ishah (may Allaah be pleased with her). It was narrated by
al-Tirmidhi, who classed it as saheeh, that 'Aa'ishah said: I said: "O
Messenger of Allaah, If I know which night is Laylat al-Qadr, what
should I say?" He said: "Say: Allaahumma innaka 'afuwwun tuhibb
al-'afwa fa'fu 'anni (O Allaah, You are All-Forgiving and You love
forgiveness so forgive me)."
Fourthly:
With regard to singling out one night of Ramadaan and regarding that
as Laylat al-Qadr, thisrequires evidence. But theodd-numbered nights
during the last ten nights are more likely than others, and the night
of the twenty-seventh is more likely to be Laylat al-Qadr, because of
the ahaadeeth which indicate that.
Fifthly:
With regard to bid'ah (innovation), it is not permissible either in
Ramadaan or at other times. It was proven that the Messenger of Allaah
(peace and blessings of Allaah be upon him) said: "Whoever innovates
anything in this matter of ours [Islam] that is not part of it will
have it rejected." And he said: "Whoever does any actionthat is not
part of this matter of ours will have itrejected."
With regard to the celebrations that are held on some nights of
Ramadaan, we know of no basis for that. The best guidance is the
guidance of Muhammad and the worst of matters are those which are
innovated.
And Allaah is the Source ofstrength. May Allaah send blessings and
peace upon our Prophet Muhammad and his family and companions.
Fataawa al-Lajnah al-Daa'imah,