1) The Messenger of Allah (sal-Allahu ‘alayhe wa sallam) said:
“Whoever stands (for the night prayer during) Ramadan with belief and hope, (then) his past sins will be forgiven”,
[The authenticity of this narration has been agreed upon by al-Bukhari and Muslim]
2) The Prophet (sal-Allahu ‘alayhe wa sallam) used to pray 13 rak’ahs at night,
[Transmitted by al-Bukhari]
3) The Prophet (sal-Allahu ‘alayhe wa sallam) did not exceed more than 11 rak’ahs (for the night prayer) during Ramadan and other than it,
[The authenticity of this narration has been agreed upon by al-Bukhari and Muslim]
4) The Messenger of Allah (sal-Allahu ‘alayhe wa sallam) said:
“Whoever stands (for the night prayer on) the Night of Power (Laylatul-Qadr) with belief and hope, (then) his past sins will be forgiven”,
[The authenticity of this narration has been agreed upon by al-Bukhari and Muslim]
5) The Messenger of Allah (sal-Allahu ‘alayhe wa sallam) said:
“Seek out Laylatul-Qadr during the odd nights of the last ten (nights) of Ramadan”,
[Transmitted by al-Bukhari]
6) Regarding the Messenger of Allah (sal-Allahu ‘alayhe wa sallam): “When the final ten nights or Ramadan arrived he used spend the night awake and awaken his family, and exert himself (in worship) and tighten his waist belt”,
[The authenticity of this narration has been agreed upon by al-Bukhari and Muslim]
Translator’s note: (tighten his waist belt) is a manner of speech implying he used to exert himself in worship.
7) ‘Aa.ishah (radhiyAllahu ‘anhaa) said: I said O Messenger of Allah: What should I say if I know which night is Laylatul-Qadr? He said:
“Say: O Allah! You are the One who pardons greatly, and loves to pardon, so pardon me”,
[Saheeh, transmitted by at-Tirmidhee]