Mishkat al-Masabih
Jabir reported the Prophet (ﷺ) as saying, “The slaughter of the embryo is included when its mother is slaughtered.” Abu Dawud and Darimi transmitted it, and Tirmidhi transmitted it on the authority of Abu Sa‘id.
وَعَنْ جَابِرٌ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «ذَكَاةُ الْجَنِينِ ذَكَاةُ أُمِّهِ» . رَوَاهُ أَبُو دَاوُد والدارمي وَرَوَاهُ التِّرْمِذِيّ عَن أبي سعيد
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