Surah 6. Al-An'am

115That is, "Although those people, who invented these rituals and customs, were your forefathers, your religious leaders and your chiefs, yet the fact is that they were wrong and had gone astray. Also it is a fact that those ways were wrong and they cannot become right and sacred simply because these were invented by your forefathers and your religious leaders, who permitted the inhuman slaughter of one's own children, who made unlawful, without rhyme or reason, the pure provisions given by Allah and who introduced innovations in religion and ascribed them to Allah. They cannot be regarded as rightly guided by any stretch of imagination even though they be your forefathers and leaders; they were certainly misguided and shall bear the consequences of their evil ways."