Menstrual Periods
حَدَّثَنَا أَحْمَدُ بْنُ أَبِي سُرَيْجٍ، قَالَ أَخْبَرَنَا شَبَابَةُ، قَالَ أَخْبَرَنَا شُعْبَةُ، عَنْ حُسَيْنٍ الْمُعَلِّمِ، عَنِ ابْنِ بُرَيْدَةَ، عَنْ سَمُرَةَ بْنِ جُنْدُبٍ، أَنَّ امْرَأَةً، مَاتَتْ فِي بَطْنٍ، فَصَلَّى عَلَيْهَا النَّبِيُّ صلى الله عليه وسلم فَقَامَ وَسَطَهَا.Narrated Samura bin Jundub:The Prophet (ﷺ) offered the funeral prayer for the dead body of a woman who died during delivery (i.e. childbirth) and he stood by the middle of her body
From Sahih al-Bukhari, whose reports the scholars accept as authentic.