Q- Is this Hadith authentic?Rasulullah (sallallahu ‘alayhi wa sallam) said: “Each time a woman breastfeeds her child/[gives birth] she receives the reward of freeing a slave”
The Muhaddithun have declared this Hadith unreliable. ‘Allamah ibn ‘Arraq (rahimahullah) states, ‘I have no doubt that this narration is a fabrication.’ (Tanzihush Shari’ah, vol. 2 pg. 211)
The narration is not suitable to quote.
And Allah Ta’ala Knows best
https://hadithanswers.com/an-unreliable-virtue-of-childbirth/