Sahih Bukhari
Loans, Payment of Loans, Freezing of Property, Bankruptcy
Volume: 003 / Book Number: 041 / Hadith Number: 586
Narrated 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."