Yahya related to me from Malik from Abu'z-Zinad from al Araj from Abu Hurayra that the Messenger of Allah ﷺ said, "Delay in payment by a rich man is injustice, but when one of you is referred for payment to a wealthy man, let him be referred."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَطْلُ الْغَنِيِّ ظُلْمٌ وَإِذَا أُتْبِعَ أَحَدُكُمْ عَلَى مَلِيءٍ فَلْيَتْبَعْ