Bhagavad Gita · Vibhuti YogaChapter 10, Shloka 39 (10.39)

Shankaracharya. bījaṃ prarohakāraṇam — the cause of sprouting; mayā apakṛṣṭaṃ parityaktaṃ nirātmakaṃ śūnyaṃ hi tat syāt; ataḥ madātmakaṃ sarvam ity arthaḥ — anything separated from me would become empty; therefore everything has me as its Self.

Acharya Ramanuja. sarvāvasthāvasthitānāṃ tattadavasthābījabhūtaṃ pratīyamānam apratīyamānaṃ ca yat tad aham eva — the seed of every state, seen or unseen; linking with 10.20: atra api ātmatayā avasthānam eva vivakṣitam — here too what is meant is abiding as the Self; ātmatayā avasthitiḥ eva hetuḥ — the reason for saying "I am X": I am the Self of X.