The Messenger of Allah (ﷺ) gave judgment about the slave who had made an agreement to purchase his freedom (mukatab) and he had been killed that blood-wit is paid for him at the rate paid for a free man so far as he has paid the purchase money, and at the rate paid for a slave as the remainder is concerned.
Reference: Sunan Abi Dawud 4581 In-book : Book 41, Hadith 88 English translation : Book 40, Hadith 4564
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