Muwatta Malik · Hadith 1255

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ سَعِيدَ بْنَ الْمُسَيَّبِ، وَسُلَيْمَانَ بْنَ يَسَارٍ، كَانَا يَقُولاَنِ عِدَّةُ الأَمَةِ إِذَا هَلَكَ عَنْهَا زَوْجُهَا شَهْرَانِ وَخَمْسُ لَيَالٍ ‏.‏

Yahya related to me from Malik that he had heard that Said ibn al-Musayyab and Sulayman ibn Yasar said, "The idda of a slave-girl when her husband dies is two months and five days

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).