Imaam Ibn Baz was asked the following question (mp3):

This questioner says: What is your opinion regarding the one who says that investigating into the essence of Allaah is shirk and is from philosophical knowledge and says that if you have not seen Allaah then how you can specify his direction. So what is your advice to him and to me because I am a student and I study with him and I have advised him and he said: I believe in my speech and I am not a doubter.

To which Imaam Ibn Baz replied:

Do not study with him, my advice is that you do not study with this hardcore Jahmite, this Jahmite, do not study with him. Allāh, it is known, he is above the heaven, in ʿuluww, above the Throne. The one who rejects this is a kāfir, we ask Allāh for safety. And as for investigating into the attributes, then Allaah has explained His attributes, as for this being prohibited, this has no basis.

Then when asked what is to be done with such a person, the Shaykh explains that his affair should be referred to the responsible parties in the University, to the mudeer or whoever is in charge.

Source: Sharḥ Bulūgh al-Marʾām (Kitāb al-Buyūʿ) 6th cassette.

Refer also to the following:

• Aasim bin Alee, Shaykh of al-Bukhaaree, (d. 221H): I Debated a Jahmee And It Became Clear That He Does Not Believe Their is A Lord Above the Heaven - (see here)
• Jareer ad-Dabbee (d. 188H): The Saying of the Jahmites Begins as Honey and Ends as Poison - They Are Attempting To Say 'There is No Deity Above the Heaven' - (see here)
• Yazeed bin Haaroon (d. 206H): Whoever Interpreted Istiwaa Upon Other Than What Is Established in the Hearts of the Common Folk is a Jahmee - (see here)
• Abbaad bin al-Awaam (d. 185H): The Final Speech of Bishr al-Mareesee and Company Ends With Them Saying 'There is Nothing Above the Heaven' - (see here)
• Wahb bin Jareer (d. 206H): The Jahmiyyah Are Trying to Say There Is Nothing Above the Heaven - (see here)
• Ayyub as-Sakhtiyaanee (d. 131H): The Central Axis of the Mu'tazilah Is That They Want to Say 'There is Nothing Above the Heaven' - (see here)
• Abdur-Rahmaan bin Mahdee (d. 198H): The Jahmiyyah Desire To Negate That Allaah is Above The Throne - (see here)
• Hammaad bin Zayd (d. 179H): The Jahmites Are Circulating Around the Issue of Wanting to Say There is Nothing Above the Heaven - (see here)
• Abu Ma'mar al-Qatee'ee al-Haafidh (d. 236H): The End-Result of the Saying of the Jahmiyyah Is That There is No Deity Above the Heaven - (see here)