Sunan Ibn Majah · Hadith 1971

حدثنا عمرو بن رافع، حدثنا هشيم، عن أبي بلج، عن محمد بن حاطب، قال قال رسول الله صلى الله عليه وسلم ‏"‏ فصل ما بين الحلال والحرام الدف والصوت في النكاح ‏"‏ ‏.‏

It was narrated from Muhammad bin Hatibthat the Messenger of Allah said: “What differentiates between the lawful and the unlawful is (beating) the Daff and raising the voices (in song) at the time of marriage.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).