Ali 'Imran 3:7

Huwa allathee anzala AAalayka alkitabaminhu ayatun muhkamatun hunna ommualkitabi waokharu mutashabihatun faammaallatheena fee quloobihim zayghun fayattabiAAoona matashabaha minhu ibtighaa alfitnati wabtighaata/weelihi wama yaAAlamu ta/weelahu illa Allahuwarrasikhoona fee alAAilmi yaqooloona amannabihi kullun min AAindi rabbina wama yaththakkaruilla oloo al-albab

It is He who has sent down to you, [O Muḥammad], the Book; in it are verses [that are] precise - they are the foundation of the Book - and others unspecific. As for those in whose hearts is deviation [from truth], they will follow that of it which is unspecific, seeking discord and seeking an interpretation [suitable to them]. And no one knows its [true] interpretation except Allāh. But those firm in knowledge say, "We believe in it. All [of it] is from our Lord." And no one will be reminded except those of understanding.

He is the One who has revealed to you the Book (the Qur’ān). Out of it there are verses that are MuHkamāt (of established meaning), which are the principal verses of the Book, and some others are Mutashābihāt (whose definite meanings are unknown). Now those who have perversity in their hearts go after such part of it as is mutashābih, seeking (to create) discord, and searching for its interpretation (that meets their desires), while no one knows its interpretation except Allah; and those well-grounded in knowledge say: “We believe therein; all is from our Lord.” Only the men of understanding observe the advice.