There are no upadhis in Brahman. Upadhis appear to create division because of avidya. Space inside pot and outside pot is relative to where you stand. Further, there is no difference in space at any level even if there is a pot. It is only your sensory perception or avidya that induces the division.
Panchadasi-2.20 and 21. There are three bhedas: svagata bheda. vijaatiya bheda. sajaatiya bheda. None of them exist in Brahman, which is infinite.
In Vivekachudamani, 235, Shankara says: The world has no existence apart from the Supreme Self and the appearance of its separateness is false like the appearance of a snake in a rope. Can a superimposition have any existence apart from its own substratum? Through delusion, it is the substratum itself which appears like that.
From Sata Sloki of Adi Shankara, Verse 50: Brahman is reflected in the intellect of various jivas. The reflection in water can appear as many but the original is only one. Similarly, the one Supreme Being (Brahman) takes on, by His power of Maya, infinite forms because of being reflected in innumerable intellects.
Brihadaranya Upanisad in 2.5.19. The all-pervading (and non-dual) Brahman appears, due to Maya, as the Jiva, by being reflected in the limiting adjunct (upadhi) in the form of the intellect which, being constituted of Sattva alone, is pure and so capable of reflecting Brahman.
As the jiva is a reflection of Brahman, is in reality non-different from Brahman. The Jivas appear as many, different from one another and limited beings, only because of the limiting upadhi, the intellect, just as the space inside a pot, though not different from the total infinite space, appears limited by the size of the pot.
See the key word Shankara uses that it is infinite space. Addition of space by the pot is an illusion. Just like addition of 1 or 10 to infinity is still infinity.
Panchadasi-3.35, 36, 37: Brahman is not limited in space. It is not limited in time. It is infinite and eternal.
Sata Sloki verse 60: Space exists both before and after a pot is made. It is wrong to think that space inside the pot comes into existence when the pot is made and is destroyed when the pot is destroyed. When an empty pot is moved from one location to another, space appears to move along with it providing a spatial difference. This is wrong. It is infinite space always.
Any astrophysicist will tell you that Spatial differences in space are illusionary. In fact, in large spaces, only space-time exists together and space and time are interwined.
Another example is what you associate with. Adi Shankara in his Bhasya on Aitareya Upanishad,1.1.1 says
Water appears as foam in the sea after its manifestation but foam is nothing but water.
Bubbles, appear separated by time and space, but there is nothing except water.
Avidya causes difference of space/time when none actually exist.