Slaughters an animal, is it permissible

A: whoever abandons Salah deliberately denying its obligation is a Kafir (disbeliever) according to the Ijma` (consensus) of the scholars, and whoever abandons it out of laziness and heedlessness is a Kafir according to the most preponderant opinion of the scholars. Those guests who know that the meat was slaughtered by a man who does not pray should alert the others or forbid them from eating it, and the sin is on the person who prepared such Walimah and those who ate although they knew that the person who slaughtered it does not pray.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.