(38) باب إِذَا اخْتَلَفَ الْبَيِّعَانِ وَالْمَبِيعُ قَائِمٌ
Narrated Abdullah ibn Mas'ud:
Muhammad ibn al-Ash'ath said: Al-Ash'ath bought slaves of booty from Abdullah ibn Mas'ud for twenty thousand (dirhams. Abdullah asked him for payment of their price. He said: I bought them for ten thousand (dirhams). Abdullah said: Appoint a man who may adjudicate between me and you. Al-Ash'ath said: (I appoint) you between me and yourself. Abdullah said: I heard the Messenger of Allah (ﷺ) say: If both parties in a business transaction differ (on the price of an article), and they have witness between them, the statement of the owner of the article will be accepted (as correct) or they may annul the transaction.
Reference: Sunan Abi Dawud 3511
In-book reference: Book 24, Hadith 96
English translation: Book 23, Hadith 3504