Wages (Kitab Al-Ijarah)

Dawud :: Book 23 : Hadith 3449

Narrated Abdullah ibn Amr ibn al-'As:

The Prophet (peace_be_upon_him) said: Both parties in a business transaction have a right to annul it so long as they have not separated unless it is a bargain with the option to annul is attached to it; and it is not permissible for one of them to separate from the other for fear that one may demand that the bargain be rescinded.

Source materials are from the University of Southern California MSA site
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