Laylatul Qadr

Aisha radhiya Allahu `anha, that she said: “O Messenger of Allah! What if I knew which night Lailatul-Qadr was, then what should I say in it?”

He said.- “Say.-

(Allahumma innaka ‘affuwwun tuhibbul ‘afwa fa’fu ‘annee.)

“O Allah You are The One Who pardons greatly, and loves to pardon, so pardon me.”.

[at-Tirmithi and Ibn Majah with a Sahih Isnad]