Language:
كتاب الحوالات
38  
Transferance of a Debt from One Person to Another (Al-Hawaala)
(1)
Chapter: Al-Hawala (the transference of a debt from one person to another)
(1)
باب فِي الْحَوَالَةِ، وَهَلْ يَرْجِعُ فِي الْحَوَالَةِ
Sahih al-Bukhari 2287

Narrated Abu Huraira:

The Prophet (ﷺ) said, "Procrastination (delay) in paying debts by a wealthy man is injustice. So, if your debt is transferred from your debtor to a rich debtor, you should agree."

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ مَطْلُ الْغَنِيِّ ظُلْمٌ، فَإِذَا أُتْبِعَ أَحَدُكُمْ عَلَى مَلِيٍّ فَلْيَتْبَعْ ‏"‏‏.‏
Reference : Sahih al-Bukhari 2287
In-book reference : Book 38, Hadith 1
USC-MSA web (English) reference : Vol. 3, Book 37, Hadith 486
  (deprecated numbering scheme)