Do not confuse us about his Sunnah. Ibn al-Muthanna said: The Sunnah of our Prophet (ﷺ) is that the waiting period of a slave-mother whose husband has died is four months and ten days.
Reference: Sunan Abi Dawud 2308 In-book : Book 13, Hadith 134 English translation : Book 12, Hadith 2301
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