And with the same chain of narration (it is narrated) from Aslam that I heard Umar bin Khattab (may Allah be pleased with him) saying: I gave a horse in charity in the way of Allah, but the person who had it wasted it (by making it weak), then I intended to buy it back from him because I thought he would sell it cheaply. Then I asked the Messenger of Allah (peace and blessings be upon him), and he said: "Do not buy it, even if he gives it to you for only one dirham, because the one who takes back his charity is like a dog that licks its own vomit."