Sahih Bukhari Volume 003, Book 041, Hadith Number 586.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 41. Loans, Payment of Loans, Freezing of Property, Bankruptcy.
Narated By Abu Huraira : A man came to the Prophet and demanded his debts and used harsh words. The companions of the Prophet wanted to harm him, but the Prophet said, "Leave him, as the creditor (owner of the right) has the right to speak."