(25) باب التَّرْغِيبِ فِي قِيَامِ رَمَضَانَ وَهُوَ التَّرَاوِيحُ
Abu Huraira reported Allah's Apostle (ﷺ) as saying:
He who prayed on the Lailat-ul-Qadr (the Majestic Night) knowing that it is (the same night). I (believe) that he (the Prophet also) said: (He who does) it with faith and seeking reward (from Allah), his sins would be forgiven.
Reference: Sahih Muslim 760 b
In-book reference: Book 6, Hadith 210
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1665