Messenger of Allah ﷺ said, "Procrastination (delay) in repaying debts by a wealthy person is injustice."

أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ ؓ يَقُولُ قَالَ رَسُولُ اللَّهِ ﷺ مَطْلُ الْغَنِيِّ ظُلْمٌ