you understand of it, act upon it; and whatever you do not understand, refer it to one who knows it.’”
Umar ibn al-Khattāb, may Allah be pleased with him, said: “Follow what is clear to you of the Book, and leave aside what is not.”
Since the Quran was revealed with its parts confirming one another, it cannot contain contradiction or inconsistency. Whoever understands one verse and believes in it, but thinks that another contradicts it, should know that he is mistaken in this, and that the meaning of the other verse agrees with it rather than contradicting it. If he does not understand the meaning of the two verses, he should believe in both and entrust knowledge of their meaning to Allah Most High.
As for ambiguity within a verse itself, this can only occur alongside clarity, explanation, and guidance. For Allah Most High has made His entire Book firm and clear, explained it, made it a source of guidance, and commanded that it be pondered. Yet some verses contain no ambiguity