Is it permissible to study the language from a man who holds the Ash'ari creed?

Question:
He says: Honorable Shaykh, may Allah grant you success. He says: I have not found anyone to study the Arabic language from except a man whom some of the great students of knowledge have warned about regarding his creed, because they say that the language is a creed. So take the language from the people of the Salaf; that is safer and more precise, even if it delays your seeking of knowledge greatly, because most of these people are Ash'aris. So should I seek knowledge of the language from this man or not, with the reason, may Allah grant you success?

Answer:
My brother, there are many who study the language, and praise be to Allah. There are many who study grammar. Seek out someone who studies grammar and has a sound creed. You will find one, if Allah wills. Yes.