Sunan Abi Dawud 2921
سنن أبي داود#2921SahihNarrated Ibn 'Abbas:To those also, to whom your right hand was pledged, give their due portion. A man made an agreement with another man (in early days of Islam), and there was no relationship between the ; one of them inherited from the other. The following verse of Surat Al-Anfal abrogated it: "But kindred by blood have prior right against each other
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan Sahih
Muhammad Muhyi Al-Din Abdul HamidHasan Sahih
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiIsnaad Hasan
In-book reference: 19:37