Sunan Abi Dawud 3585
سنن أبي داود#3585Da'ifUmm Salamah reported the Prophet (ﷺ) as saying when two men were disputing over inheritance and old things:I decide between you on the basis of my opinion in cases about which no revelation has been sent down to me
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Shuaib Al ArnautHasan
Zubair Ali ZaiHasan
In-book reference: 25:15