Musannaf Ibn Abi Shaybah 22771 — A mukatab who dies leaving a debt

Ibrahim (may Allah have mercy on him) said that if a mukatab slave dies owing a debt, his master will be placed with the creditors and given a share according to the installments that have fallen due. If no installment is immediately due from him, they will begin with the creditors, who will collect their debt. If anything is left over, it goes to the masters until the kitabah amount is completed, and if anything is left over even after the kitabah amount has been paid, it goes to his heirs.