(72) باب إِعْلاَنِ النِّكَاحِ بِالصَّوْتِ وَضَرْبِ الدُّفِّ .
It was narrated that Muhammad bin Hatib said:
"The Messenger of Allah said: 'What differentiates between the lawful and the unlawful is the Duff, and the voice (singing) for the wedding.'" (JA)
Reference (JA): Sunan an-Nasa'i 3369 (JA)
In-book reference (JA): Book 26, Hadith 174 (JA)
English translation (JA): Vol. 4, Book 26, Hadith 3371 (JA)