Dua(Supplication) for Laylat ul Qadr

It is recommended to supplicate often during all times, especially during the month of Ramadan, in the last ten nights, and during the odd nights of it even more so. It is recommended that one say the following supplication a lot:

“O Allah! Verily, You are the Of the Pardoning, You love to pardon, so pardon me.”
This is due to what Imam Ahmad recorded from `A’ishah, that she said,
“O Messenger of Allah! If I find the Night of Al-Qadr what should I say”
He replied,
«قُولِي: اللْهُمَّ إِنَّكَ عَفُوٌّ تُحِبُّ الْعَفْوَ فَاعْفُ عَنِّي»
(Say: “O Allah! Verily, You are the Of the Pardoning, You love to pardon, so pardon me.”)

At-Tirmidhi, An-Nasa’i and Ibn Majah have all recorded this Hadith. At-Tirmidhi said, “This Hadith is Hasan Sahih.”
Al-Hakim recorded it in his Mustadrak (with a different chain of narration) and he said that it is authentic according to the criteria of the two Shaykhs (Al-Bukhari and Muslim). An-Nasa’i also recorded it.