in Qu'ran 2:173 He has made unlawful to you only carrion and blood and the flesh of swine and that over which there has been pronounced the name of anyone other than Allah's. But he who is constrained (to eat of them) - and he neither covets them nor exceeds the indispensable limit incurs no sin: Allah is All-Forgiving, All-Compassionate.
In this, we learn that we must not eat any animal slaughtered in the name of any other god except Allah. Any animal slaughtered in the name of any good other than Allah is forbidden.