Sahih Al Bukhari – Book of Loans, Payment Of Loans, Freezing Of Property, Bankruptcy
Volumn 003, Book 041, Hadith Number 579.
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Narated By Jabir bin Abdullah : I went to the Prophet while he was in the Mosque. (Mis'ar thinks, that Jabir went in the forenoon.) After the Prophet told me to pray two Rakat, he repayed me the debt he owed me and gave me an extra amount.