The Family Of Imran - 3:66
You argue about matters about which you have knowledge! But how can you argue about something about which you have no knowledge? You may not know, but Allah knows.
What was the dispute of the people of the Book about Abraham?
The Cow/2:140
"Do you claim that Abraham, Ishmael, Isaac, Jacob and their descendants were Jews or Christians? Say: "Do you know better or Allah? Who is more unjust than he who conceals what Allah has revealed? Allah is not heedless of what you do."