من لا يحضره الفقيه, volume 3, page 285

Hadith.4028 - Shihab ibn Abd Rabbih narrated from Abu Abdullah (as) who said: I heard Imam (as) say that a man came to the Messenger of Allah (swt) (may Allah (swt) bless him and his family) asking for help. The Messenger of Allah (swt) (may Allah (swt) bless him and his family) said: "Who has a loan (to give)?" One of the Muslims said: "I have." So the Prophet (may Allah (swt) bless him and his family) said: "Give him four wasqs of dates." The man gave him the dates. Later, the man came back to the Messenger of Allah (swt) (may Allah (swt) bless him and his family) asking for repayment. The Prophet (sw) said: "It will be provided, and I will give it to you." He returned again, and the Prophet (sw) said: "It will be provided, and I will give it to you." He came back once more, and the Prophet (sw) repeated: "It will be provided, and I will give it to you." The man then said: "You have asked too much, O Messenger of Allah (swt)." The Prophet (may Allah (swt) bless him and his family) laughed and said: "Who has a loan (to give)?" A man stood up and said: "I have." The Prophet (sw) asked: "How much do you have?" He said: "As much as you wish." The Prophet (sw) said: "Give him eight wasqs." The man said: "I only owe four." The Prophet (may Allah (swt) bless him and his family) replied: "And four more as well."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.