It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: Whoever stands (in prayer, i.e., Tarawih) during the nights of Ramadan with faith and seeking reward, his previous sins will be forgiven.
Hadith Referenceاللؤلؤ والمرجان / كتاب صلاة المسافرين وقصرها / 435
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 27 كتاب الإيمان: 27 باب تطوع قيام رمضان من الإيمان»