It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Return the trust to the one who entrusted you, and do not betray the one who betrayed you." This narration of Sharik is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Render the trust to the one who made you trustee, and do not betray the one who betrayed you."

It is narrated from Sayyiduna Abdullah bin Umar and Sayyiduna Abdullah bin Abbas (may Allah be pleased with them) that the Prophet (peace and blessings be upon him) said: "It is not lawful for a man to give a gift or make a present and then take it back, except a father regarding what he gives his child. The likeness of one who gives a gift and then takes it back is that of a dog that eats, and when it is full it vomits, then returns to its own vomit (and licks it up)." This hadith has a sahih (authentic) chain of narration, for I know of no disagreement about the integrity ('adalah) of Amr bin Shu'ayb; they differed only about his father's hearing from his grandfather.