Does a woman's fast become invalid if she gives birth during a Ramadan day, even when no postnatal bleeding occurs?

Summary

According to the definitive view in the Shafi'i school, a woman's fast is invalidated by childbirth in absolute terms, whether or not the birth is followed by postnatal bleeding. The reasoning is that a birth without blood still places her in a state of major ritual impurity requiring the full bath, since the child is formed from the fluids of both man and woman. The fatwa also notes that scholars such as al-Mawardi and al-Baghawi linked the invalidation to the obligation of the full bath, and the definitive view obliges it even without blood.

Written in our own words from the original fatwa — check the source before acting on it.