Sahih al-Bukhari 2400
Sahih al-Bukhari · Book 43: Loans, Payment of Loans, Freezing of Property, Bankruptcy · Procrastination (delay) in repaying debts by a wealthy person is injustice
Narrated Abu Huraira:
حَدَّثَنَا مُسَدَّدٌ ، حَدَّثَنَا عَبْدُ الأَعْلَى ، عَنْ مَعْمَرٍ ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ ، أَخِي وَهْبِ بْنِ مُنَبِّهٍ أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ ـ رضى الله عنه ـ يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَطْلُ الْغَنِيِّ ظُلْمٌ " .
Allah's Messenger (ﷺ) said, "Procrastination (delay) in repaying debts by a wealthy person is injustice."