Lady Aisha Siddiqa (may Allah be pleased with her) narrates: The Prophet Muhammad (peace and blessings be upon him) recited the statement of Allah Almighty: "He it is Who has sent down to you the Book; in it are verses that are clear."
He recited this verse till the end, then said: "When you see those who recite the ambiguous verses, then know that these are the people Allah has referred to, so beware of them."