The obligation to believe in everything by which Allah has described Himself in a manner of truth befitting Him (Glorified and Exalted is He), not in a manner of metaphor.

The Shaykh : We mentioned that it is obligatory for us to believe in everything by which Allah has described Himself. It is obligatory that we believe in everything by which Allah has described Himself in a manner of truth, not metaphor. What is the evidence? There is no god but Allah! It is obligatory that we believe in everything by which Allah has informed us about Himself in a manner of truth.
The student: ... .

The Shaykh : Now, no, this is not it. Allah the Exalted said: meaning that no one is more truthful. And if the speech of Allah the Exalted is the most truthful of speech, then it is obligatory that we believe in what Allah has informed us about Himself, and not believing in that means denying the truth. And it must be in the truth that the Arabic language or the Shari'ah evidence requires, and we mentioned that, or we mentioned the evidence for this, which is His saying, Mighty and Majestic: And on this basis, it is obligatory that we interpret this Qur'an according to what the clear Arabic language requires, or what the Shari'ah requires, because the Shari'ah transferred some words from their linguistic meaning to a Shari'ah meaning, such as prayer, for example.
And there is another evidence: complete meaning We made it in the Arabic language. Complete the verse: meaning you understand the meaning and comprehend it. And this means that we interpret the Qur'an according to what the Arabic language requires. And on this basis, everything by which Allah has informed us about Himself must be interpreted according to its linguistic or Shari'ah truth, and it is not permissible for us to impose our minds on that, because if we judge that by our minds, it means that we have turned everything Allah has revealed into what the mind requires, so the people's reliance in matters of creed would be on their minds. And some of the scholars of knowledge said: "I wish I knew by what mind the Book and the Sunnah are weighed. Do we leave the Book and the Sunnah for the argument of every man who comes to us who is more eloquent than another?"