and if his female mukatab bears him a child, she is free to choose: she may either keep the kitābah in force or declare herself incapable, in which case she becomes his umm walad.

If a master places his mudabbara (a slave promised freedom at his death) under a kitābah, the contract is valid. Should the master die leaving no estate, she may choose between working off two-thirds of her market value or the full amount stipulated in the kitābah.

If, conversely, he grants tadbīr to his female mukatab, the tadbīr is valid and she again has a choice: either continue with the kitābah, or declare herself incapable and remain a mudabbara. If she opts to continue the kitābah and the master later dies without assets, she may—according to Abū Ḥanīfah—work off two-thirds of the kitābah price or two-thirds of her assessed value.

When a mukatab attempts to emancipate his own slave for a payment, the emancipation is not effective; likewise, if he donates the slave in exchange for compensation, the transaction is void. Should he instead place his slave under a kitābah, the contract is valid: if that second slave completes payment before the first mukatab gains freedom, the walāʾ belongs to the original master; if payment is completed after the first mukatab has been emancipated, the walāʾ belongs to him.