AGREEMENT OF SALE AND ITS BLESSINGS H 60 "A sales agreement is revocable up until the buyer and seller part company. If they tell the truth and disclose everything relevant to the transaction, it becomes full of blessings for both of them; but if they speak falsely and conceal that which should be disclosed, the blessing of the transaction is wiped out." R 60 Bukhari and Muslim with a chain up to Hakim son of Hizam who related that the Prophet, praise and peace be upon him, said this.
59- السادس : عن أبي خالد حَكيمِ بنِ حزامٍ رضي الله عنه ، قَالَ : قَالَ رسولُ الله صلى الله عليه وآله وسلم : "البَيِّعَانِ بالخِيَار مَا لَمْ يَتَفَرَّقَا ، فَإنْ صَدَقا وَبيَّنَا بُوركَ لَهُمَا في بيعِهمَا ، وإنْ كَتَمَا وَكَذَبَا مُحِقَتْ بركَةُ بَيعِهِما" مُتَّفَقٌ عَلَيهِ .