Hirmas bin Habib al-Anbari narrates from his father, and he from his grandfather (may Allah be pleased with him), that he took a debtor of his to the Messenger of Allah (peace and blessings be upon him), and he (peace and blessings be upon him) said: "Keep hold of him." Then he met him some time later and said: "O young man of Banu al-Anbar! What became of your captive?"
Hadith Referenceالسنن الكبرى للبيهقي / كتاب التفليس / 11287