Nadr bin Shaiban says that once I met Abu Salamah bin Abdur Rahman. I said to him: Tell me a hadith from your father which he himself heard from the Prophet (peace be upon him), and that too about the month of Ramadan. He said: Alright, my father narrated this hadith from the Prophet (peace be upon him): "Allah Almighty has made the fasting of Ramadan obligatory, and I have declared its night prayer (Qiyam) as Sunnah. Whoever fasts in Ramadan with faith and seeking reward, and performs the night prayer (Tarawih), will come out of sins as a newborn child comes out from its mother."
Hadith Referenceمسند احمد / مسند باقي العشرة المبشرين بالجنة / 1660
Hadith Gradingحکم دارالسلام:إسناده ضعيف، النضر بن شيبان ضعيف وفي قول أبى سلمة: «حدثني أبى» نظر، لأن أبا سلمة لم يصح سماعه من أبيه.