Volumn 003, Book 041, Hadith Number 582.
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Narated By 'Aisha Razi

used to invoke Allah SWT  in the prayer saying, "O Allah, I seek refuge with you from all sins, and from being in debt." Someone said, O Allah's Apostle (PBUH) ! (I see you) very often you seek refuge with Allah from being in debt. He replied, "If a person is in debt, he tells lies when he speaks, and breaks his promises when he promises."