سورة Al-Baqarah ( The Cow ) - الآية 140

[Ask them,] ‘Do you say that Abraham, Ishmael, Isaac, Jacob, and the Tribes were Jews or Christians?’ Say, ‘Is it you who know better, or Allah?’ And who is a greater wrongdoer than someone who conceals a testimony that is with him from Allah? And Allah is not oblivious of what you do.