Sunan an-Nasa'i 4657
سنن النسائي#4657Sahihit was narrated from 'Abdullah that:the Messenger of Allah forbade selling loyalty or giving it away
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 44:209