(15) The Chapters on Charity
كتاب الصدقات
(8) Chapter: Transferring Debt
(8.00) باب الْحَوَالَةِ
Sunan Ibn Majah 2404 
It was narrated from Ibn 'Umar that the Messenger of Allah (ﷺ) said:
“When a rich man takes too long to repay a debt, this is wrongdoing, and if the debt is transferred to a rich man, you should accept if.”
حَدَّثَنَا إِسْمَاعِيلُ بْنُ تَوْبَةَ، حَدَّثَنَا هُشَيْمٌ، عَنْ يُونُسَ بْنِ عُبَيْدٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ مَطْلُ الْغَنِيِّ ظُلْمٌ وَإِذَا أُحِلْتَ عَلَى مَلِيءٍ فَاتْبَعْهُ ‏"‏ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan Ibn Majah 2404
In-book reference : Book 15, Hadith 15
English translation : Vol. 3, Book 15, Hadith 2404