Sunan Abi Dawud 3345
سنن أبي داود#3345SahihNarrated Abu Hurairah:The Messenger of Allah (ﷺ) as saying: Delay in payment (of debt) by a rich man is injunctive, but when one of you is referred to a wealthy man, he should accept the reference
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (2287) Sahih Muslim (1564)
In-book reference: 23:20