Muwatta Imam Malik (Riwayat Yahya)

Imam Malik, may Allah have mercy on him, said that if a thing is mortgaged with two people, and one of the mortgagees demands his debt and wants to sell the mortgaged item, while the other mortgagee gives the mortgagor respite, then if the mortgaged item is such that selling half of it does not harm the other mortgagee, half of it will be sold and the debt of one mortgagee will be paid. But if there is harm, then the entire mortgaged item will be sold and half will be given to the mortgagee who demands it, and if the mortgagee who gave respite willingly wants, he may hand over half of the price to the mortgagor. If not, he should swear: "I gave respite so that the mortgaged item remains with me as it is," then his right should be paid at that time.

Imam Malik, may Allah have mercy on him, said that if a slave is mortgaged, the property of the slave will be taken by the mortgagor, unless the mortgagee stipulates that his property also remains mortgaged with him.