Is it permissible to study grammar, morphology, and the Qur'an without creed from the Asha'irah and other innovators?

The student : There are some students who study under Asha'iri and corrupt scholars, but they do not study creed; rather, they study other sciences such as grammar, morphology, and the Qur'an. Is this permissible?

The Shaykh : Of course, this is of no benefit. What is beneficial is correct knowledge; secondly, it must be accompanied by advice and religion, for advice, as you know well, is part of the religion. As for this one being Asha'iri and this one Maturidi and this one such-and-such, this divides the Muslim community and weakens their strength.
The student : My intention, Shaykh, was asking if it is valid for a student to study other sciences besides creed and logic from a teacher, or do you advise... He studies, for example, under a Shaykh...

The Shaykh : And upon you be peace and the mercy of Allah and His blessings. Welcome, welcome. May Allah bless you. Welcome, welcome. How are you?
The student : We praise Allah for that.

The Shaykh : How is your father? Is he well?
The student : We praise Allah for that.

The Shaykh : Praise be to Allah, I did not understand your intention.
The student : For example, a student finds an Asha'iri Shaykh or something like that, and he is a beginner who wants to study grammar or morphology from him. Is it permissible for him, or do you advise him to do so, or to leave it?

The Shaykh : You mean he wants to study grammar and morphology from this person?The Shaykh : Do you mean?
The student: Yes.

The Shaykh : And he is, for example, Asha'iri?
The student: Yes.

The Shaykh : Yes, if he is well-grounded in creed, it is permissible; otherwise, it is not.