Eating the slaughtered animal of someone who curses the religion during fits of anger

Q 2: Is it permissible to eat the meat of animals that were slaughtered by a butcher who sometimes insults religion when he is angry? It is noteworthy that he performs Salah (Prayer) and Sawm (fast). Please advise. May Allah reward you!

A: Insulting religion constitutes Riddah (apostasy) from Islam. (Part No. 22; Page No. 441) It is impermissible to eat the flesh of animals that were slaughtered by someone who insults religion, even if he performs Salah and Sawm, until he performs sincere Tawbah (repentance to Allah) and abandons this evil act that makes him an apostate. His acts of worship, including Salah and Sawm, are null and void until he performs sincere Tawbah of what he did, as Allah (Glorified and Exalted be He) says, But if they had joined in worship others with Allâh, all that they used to do would have been of no benefit to them. (Surah Al-'An`am, 6:88) There are other Ayahs (Qur'anic verses) that convey this same meaning.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.