The Prophet ﷺ said: The divorce of a slave-woman consists in saying it twice and her waiting period is two menstrual courses (qur') AbuAsim said: A similar tradition has been narrated to me by Muzahir and al-Qasim on the authority of Aisha from the Prophet ﷺ, except that he said: And her waiting period ('iddah) is two courses. Abu Dawud said: This tradition is obscure.  

عَنِ النَّبِيِّ ﷺ قَالَ طَلاَقُ الأَمَةِ تَطْلِيقَتَانِ وَقُرْؤُهَا حَيْضَتَانِ قَالَ أَبُو عَاصِمٍ حَدَّثَنِي مُظَاهِرٌ حَدَّثَنِي الْقَاسِمُ عَنْ عَائِشَةَ عَنِ النَّبِيِّ ﷺ مِثْلَهُ إِلاَّ أَنَّهُ قَالَ وَعِدَّتُهَا حَيْضَتَانِ  

[Machine] From the Prophet ﷺ, he said, "The divorce of a slave woman is two divorces, and the recitation of it is two menstruation periods." Abu Asim said, "So I mentioned it to Muzahir ibn Aslam, and I said to him, 'Tell me as Ibn Jurayj told you.' So Muzahir narrated to me from Al-Qasim, from Aisha, from the Prophet ﷺ, he said, 'The divorce of a slave woman is two divorces, and the recitation of it is two menstruation periods,' just as Muzahir ibn Aslam had narrated it. Sheikhs from the people of Basra have not mentioned it with any criticism. So the hadith is authentic, and no one from our earlier scholars has rejected it, although there is a contradictory narration from Ibn Abbas narrated."  

عَنِ النَّبِيِّ ﷺ قَالَ «طَلَاقُ الْأَمَةِ تَطْلِيقَتَانِ وَقَرْؤُهَا حَيْضَتَانِ» قَالَ أَبُو عَاصِمٍ فَذَكَرْتُهُ لِمُظَاهِرِ بْنِ أَسْلَمَ فَقُلْتُ حَدِّثْنِي كَمَا حَدَّثْتَ ابْنَ جُرَيْجٍ فَحَدَّثَنِي مُظَاهِرٌ عَنِ الْقَاسِمِ عَنْ عَائِشَةَ عَنِ النَّبِيِّ ﷺ قَالَ «طَلَاقُ الْأَمَةِ تَطْلِيقَتَانِ وَقَرْؤُهَا حَيْضَتَانِ» مِثْلُ مَا حَدَّثَهُ مُظَاهِرُ بْنُ أَسْلَمَ شَيْخٌ مِنْ أَهْلِ الْبَصْرَةِ لَمْ يَذْكُرْهُ أَحَدٌ مِنْ مُتَقَدِّمِي مَشَايِخِنَا بِجَرْحٍ فَإِذَا الْحَدِيثُ صَحِيحٌ وَلَمْ يُخَرِّجَاهُ وَقَدْ رُوِيَ عَنِ ابْنِ عَبَّاسٍ حَدِيثٌ يُعَارِضُهُ صحيح