52 13874 Sahih Muslim 22 3930 The Book of Transactions - كتاب البيوع "30399 11014 18" "حدثنا يحيى بن يحيى، قال قرأت على مالك عن نافع، عن ابن عمر، أن رسول الله صلى الله عليه وسلم قال "" البيعان كل واحد منهما بالخيار على صاحبه ما لم يتفرقا إلا بيع الخيار "" ." "Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (may peace be upon him) as saying: Both parties in a business transaction have the right to annul it so long as they have not separated;, except in transactions which have been made subject to the right of parties to annul them."