Sahih Muslim
The Book of Transactions (Kitab Al-Buyu)
Book Number: 010 / Hadith Number: 3777
Abu Sa'id al-Khudri (Allah be pleeased with him) reported that in the time of Allah's Messenger (may peace be upon him) a man suffered loss in fruits he had bought and his debt increased; so Allah's Messenger (may peace be upon him) told (the people) to give him charity and they gave him charity, but that was not enough to pay the debt in full, whereupon Allah's Messenger (may peace be upon him) said to his creditors:" Take what you find, you will have nothing but alms.