Sufis claim that in certain of their rituals, Allah^-azwj diffuses into their souls (God Forbid) a totally wrong and imaginary concept and we have many Ahadith in the rejection of this illicit concept, e.g.,

(A Jew asked Rasool Allah^-saww): ‘Where is your^-saww Lord^-azwj?’ (Rasool Allah^-saww replied)He^-azwj is in every place, and He^-azwj is not enclosed into a thing from the limited place’. He said, ‘And how is He^-azwj?’ He^-saww said: ‘And how can I^-saww describe my^-saww Lord^-azwj with the ‘how’, and the ‘how’ is a creation, and Allah^-azwj cannot be described by His^-azwj creation’ (an extract).^[1]

Amir Al-Momineen^-asws replied about a question regarding Allah^-azwj: He^-azwj is not similar to any form and cannot be felt and comprehended through any of the senses and cannot be analogised with the people.

Allah^-azwj is near but at the same time He^-azwj is far and He^-azwj is far but He^-azwj is near (at the same instance). He^-azwj is above everything but one cannot say that certain things are above Him^-azwj. He^-azwj is before everything but one cannot say that something is before Him^-azwj. He^-azwj is inside all things but not the way things are inside other things. He^-azwj is outside everything but not the way things are outside other things. Glory belongs to the One^-azwj who is such and nothing else other than Him^-azwj is as such and for everything there is a precursor.[2]

Amir Al-Momineen^-asws says in a sermon:

لَيْسَ فِي الْأَشْيَاءِ بِوَالِجٍ‏ وَ لَا عَنْهَا بِخَارِجٍ يُخْبِرُ لَا بِلِسَانٍ وَ لَهَوَاتٍ‏ وَ يَسْمَعُ لَا بِخُرُوقٍ وَ أَدَوَاتٍ يَقُولُ وَ لَا يَلْفِظُ وَ يَحْفَظُ وَ لَا يَتَحَفَّظُ وَ يُرِيدُ وَ لَا يُضْمِرُ يُحِبُّ وَ يَرْضَى مِنْ غَيْرِ رِقَّةٍ وَ يُبْغِضُ وَ يَغْضَبُ مِنْ غَيْرِ مَشَقَّةٍ

Allah^-azwj doesn’t Diffuse into the things, nor come out from these. He^-azwj Informs, not by a tongue and tone, and He^-azwj Hears, not by a hole (like from the hole of ears) and an instrument (throat to speak). He^-azwj is Saying, not orally, and He^-azwj Preserves, not by memorising, and He^-azwj Wants not by cherishing, He^-azwj Loves and He^-azwj is Pleased from without a delicateness, and He^‑azwj Hates from without a difficulty (an extract).[3]

[1] Al Kafi V 1 – The Book Of Tawheed (Oneness of Allah^azwj) CH 8 H 9

[2] Al-Kafi, Vol. 1, H. 225 الكافي ج : 1 ص : 86

[3] Nahjul Balagha, Sermon no. 186