Below is original Fatwa of Dar Ulum deoband saying that Allah is present everywhere and in everything:

http://darulifta-deoband.org/showuserview.do?function=answerView&all=ur&id=32642&limit=1&idxpg=0&qry=%3Cc%3EFAB%3C%2Fc%3E%3Cs%3EISB%3C%2Fs%3E%3Cl%3Eur%3C%2Fl%3E

عقائد و ایمانیات

اسلامی عقائد
India
Question: 32642
کیا اللہ پاک ہر جگہ موجود ہے؟ کیا اللہ پاک ایک ہی وقت میں ہر جگہ ہے؟ کیا اللہ پاک ہر چیز میں موجود ہے؟
Jun 30,2011
Answer: 32642
فتویب: 1023=860-7/1432

جی ہاں اللہ تعالیٰ ہرجگہ ہے۔
جی ہاں ایک ہی وقت میں ہرجگہ موجود ہے۔
اللہ تعالیٰ ہرچیز میں موجود ہے۔ یہ تمام امور قرآنی آیات سے ثابت ہیں۔
واللہ تعالیٰ اعلم

Below are texts of dialogue between Mumtaz ul Haq and brother Yaseen Chaudhry, in which Mumtaz ul Haq denied that Deobandis say Allah is everywhere and in everything, and then he was presented Dar Ulum Deoband’s Fatwa that Allah is everywhere and in everything:

https://ia601502.us.archive.org/6/items/MumtazYaseen/Mumtaz-Yaseen.pdf

Below are texts of dialogue between Mumtaz ul Haq and brother Sohail Patel, in which Sohail patel asked Mumtaz ul Haq about Dar Ulum Deoband’s original fatwa and Mumtaz ul Haq said it should be understood as Allah’s power and knowledge being everywhere and in everything:

https://ia601500.us.archive.org/17/items/MumtazSohail/Mumtaz-Sohail.pdf

And after this dialogue, Sohail Patel asked Dar Ulum Deoband about their Fatwa, does it mean by knowledge or by essence, and they replied to him that Allah is everywhere and in everything, and only Allah knows how, here is text of Dar Ulum Deoband’s Fatwa:

https://ia601505.us.archive.org/7/items/Darulumdeoband/Darulumdeoband.pdf

So this Fatwa of Dar Ulum Deoband makes it clear that they do not believe that Allah is everywhere and in everything by His knowledge and power, rather for them only Allah knows how He is present everywhere and in everything.

And this Fatwa has been signed by their Mufti Habib ur Rehman, and two seniors Muftis of Dar Ulum Deoband, showing the Creed of Dar Ulum Deoband: Allah is everywhere and in everything

Also scans of the 10 quotes of Deobandi elders on Wahdatul Wujud:

http://ia601506.us.archive.org/30/items/DeoWahdatulWujud/DeoWahdatulWujud.pdf