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: When the Imam says "Sami' Allahu liman hamidah" and after that the follower says "Allahumma Rabbana lakal hamd," his past sins are forgiven.
Hadith Referenceالفتح الربانی / أبواب صفة الصلاة / 1711
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«أخرجه مسلم: 409 ، (انظر مسند أحمد ترقيم الرسالة: 9401 ترقیم بيت الأفكار الدولية: 9390»