Sahih Muslim, 3790

Rapporté par Jabir b. Abdullah رضي الله عنه : Le Messager d’Allah ﷺ a rendu obligatoire à chaque tribu le paiement du prix du sang (diyya) ; il a aussi précisé qu’il n’est pas permis à un musulman de se faire l’allié (du serviteur affranchi par un autre) musulman sans sa permission. (Le rapporteur ajoute :) J’ai appris qu’il (le Prophète ﷺ) a maudit celui qui fait cela (et cela a été consigné) dans son écrit (sahifa)

Jabir b. Abdullah (Allah be pleased with them) reported that Allah's Apostle (ﷺ) made it obligatory for every tribe (the payment) of blood-wit; he then also made it explicit that it is not permissible for a Muslim to make himself the ally (of the slave emancipated by another) Muslim without his permission. He (the narrator further added):I was informed that he (the Holy Prophet) cursed the one who did that (and it was recorded) in his Sahifa (in a document)