A’ishah (radhiallahu `anha) reported that
she asked Allah’s Messenger (sallallahu `alayhi wa sallam),
“O Messenger of Allah!
If I knew which night is Laylat ul-Qadr, what should I say during it?”
Holy Prophet (Sallallaahu Alayhi Wasallam) advised her to recite:
“Allahumma innaka `afuwwun tuh.ibbul `afwa fa`fu `annee “
O Allah! You are forgiving, and you love forgiveness. So forgive me.
[Recorded by Ahmad, Ibn Majah, and at-Tirmithi.]