(17) باب فِي خِيَارِ الْمُتَبَايِعَيْنِ
Narrated 'Abdullah bin 'Umar:
The Messenger of Allah (ﷺ) as saying: Each one of the two parties in a business has an option (to annul it) against the other party so long as they have not separated, except in a conditional bargain.
Reference: Sunan Abi Dawud 3454
In-book reference: Book 24, Hadith 39
English translation: Book 23, Hadith 3447