The Messenger of Allah said: "The distinction between the lawful and the unlawful is the Duff and the voice."
قَالَ رَسُولُ اللَّهِ ﷺ فَصْلُ مَا بَيْنَ الْحَرَامِ وَالْحَلاَلِ الدُّفُّ وَالصَّوْتُ قَالَ وَفِي الْبَابِ عَنْ عَائِشَةَ وَجَابِرٍ وَالرُّبَيِّعِ بِنْتِ مُعَوِّذٍ