Do you claim that Ibrahim (Abraham), Isma’il (Ishmael), Ishaq (Isaac), Ya’qoob (Jacob) and their descendants were all Jews or Christians? Are you more knowledgeable than Allah?” Who is more wicked than the one who hides the testimony he has received from Allah? Allah is not unaware of what you do.
Meaning:-
Dissension: disagreement that leads to discord
Wicked: sinful, evil or morally wrong
Testimony: evidence or proof provided by the existence or appearance of something.