It was narrated from Samurah bin Jundab Al-Fazari that the Messenger of Allah ﷺ offered the funeral prayer for a woman who had died in nifas* and he stood level with her middle (i.e. her waist).” *The postnatal bleeding period.
أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى عَلَى امْرَأَةٍ مَاتَتْ فِي نِفَاسِهَا فَقَامَ وَسَطَهَا