大方廣佛華嚴經疏 47.33

47.33

第六明住一切法者，明三昧自在，兼答普光三昧問。如來所住無非三昧，故遍住一切，文顯可知。

Sixth, clarifying dwelling in all dharmas clarifies the mastery of samādhi and also answers the question on samādhi from the Universal Light [assembly]. Because that in which the Tathāgata dwells is nothing other than samādhi, he dwells universally in everything; the text is evident and can be known.