The Messenger of Allah ﷺ decreed that each clan was responsible for paying the blood-money of its members, and that it is not permissible for a freed slave to take a Muslim as his patron without the latter's permission.
أخبرنا العباس بن عبد العظيم قال حدثنا الضحاك بن مخلد عن ابن جريج قال أخبرني أبو الزبير أنه سمع
كتب رسول الله ﷺ على كل بطن عقولة ولا يحل لمولى أن يتولى مسلما بغير إذنه
Muslim narrated it in the chapter on Emancipation, in the section on the prohibition of a freed slave attaching himself to someone other than his manumitters, hadith no. 1507, from the hadith of Ibn Jurayj through this same chain. It is also found in Kubra, hadith no. 7033.