The tradition mentioned above has also been transmitted by Qatadah through a different chain of narrators to the same effect. This version adds:
"If he finds defect (in the slave) within three days, he may return it without evidence; if he finds a defect after three days, he will be required to produce evidence that he (the slave) had the defect when he bought it."
Abu Dawud said: This explanation is from the words of Qatadah.
Reference: Sunan Abi Dawud 3507 In-book : Book 24, Hadith 92 English translation : Book 23, Hadith 3500
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