Amr bin Abi Salamah (may Allah have mercy on him) said: I heard al-Awza'i (may Allah have mercy on him) saying: The view of the people of Makkah on temporary marriage (mut'ah) and currency exchange (sarf) will be left; the view of the people of Madinah on approaching women in their rear and on listening to music (sama') will be left; and the view of the people of Sham on compulsion and obedience, and the view of the people of Kufah on nabidh and on the (late) suhur, will be left.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20919