When Abu Zur'ah made a business transaction with a man, he gave him the right of option. He then would tell him: Give me the right of option (to annul the bargain). He said: I heard Abu Hurayrah say: The Messenger of Allah (ﷺ) said: Two people must separate only by mutual consent.
Reference: Sunan Abi Dawud 3458 In-book : Book 24, Hadith 43 English translation : Book 23, Hadith 3451
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