Q 1: Is it permissible
to eat from the meat slaughtered in commemoration of the Mawlid (the Prophet’s birthday) or any other birth anniversary?
Sacrificing animals on the occasion of commemorating the birth of a prophet or a Waliy (pious person) to glorify them is judged as sacrificing an animal to other than Allah, which is Shirk (associating others with Allah in His Divinity or worship). Therefore, it is not permissible to eat from these animals. It is authentically reported that the Prophet (peace be upon him) said:
Allah has cursed the one who slaughters (a sacrifice) to other than Allah.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.