"We affirm existence and manifestation, and we negate the reality of physical bodies and boundaries."

And it came in The Proof of the Knower (Hujjat al-‘Arif):

"As for the Creator, He is neither described nor bounded; because He is eternal from inception (qadīm), and He is neither a substance (jawhar), nor an accident (‘araḍ), nor a physical body (jism)."

And in The Realities of the Secrets of Religion (Haqa'iq Asrar al-Din):

"The Essence (al-Ma'na) in itself is neither a physical body nor a form; and He manifests through bodies however He wills."

And our Master al-Jali said in verse:

“And the Essence manifests like His Names and His veils, without embodiment (tajsīd).”

And it came in The Treatise of Clarification (Risalat al-Bayan):

"And that which has been narrated concerning the prohibition against saying that He is a physical body or a form is authentic."