Sunan at-Tirmithiy كتاب البيوع باب ما جاء إذا اختلف البيعان
The Messenger of God, peace and blessings of God be upon him, said, "When transacting parties disagree, sellers get the final say (1), and buyers have the choice [to either accept or reject]." Footnotes (1) As to what the terms of the transaction are. Click on ḥadīth to read more