Samurah bin Jundub (may Allah be pleased with him) said: I prayed behind the Prophet (peace and blessings be upon him) when he prayed the funeral prayer over Umm Ka'b, who had died during her postnatal bleeding, and he (peace and blessings be upon him) stood level with her middle and led the prayer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6924