Al An‘ām

فَكُلُواْ مِمَّا ذُكِرَ اسْمُ اللّهِ عَلَيْهِ إِن كُنتُمْ بِآيَاتِهِ مُؤْمِنِينَ

118. "Therefore, eat (the meat) of that over which Allah’s name has been mentioned, if you are believers in His Signs."

The Effects of Paganism should be removed totally

Through previous verses, the reality of Unity was proved, and the falsehood of paganism and idolatry was made manifest. One of the results of this question is that Muslims should avoid consuming the meat of the animals slaughtered by the name of idols. They should use only the meat of those animals which are slaughtered by the name of Allah. Concerning this meaning, the Qur'an says:

That is, the Faith is not only a bare claim, a lonely statement, and a simple belief. But it should be proved through practice, too. The person, who believes in Allah, will consume only these kinds of meat.