Bhagavad Gita · Vishvarupa Darshana YogaChapter 11, Shloka 37 (11.37)

Shankaracharya. sat vidyamānam, asat ca yatra nāsti iti buddhiḥ — sat = that which we understand to exist, asat = that which we understand not to exist; paramārthatas tu sadasatoḥ paraṃ tat akṣaraṃ yat akṣaraṃ vedavidaḥ vadanti — in the highest truth, the imperishable is beyond both being and non-being.

Acharya Ramanuja — a different reading. akṣaram … jīvātmatattvam — here "akshara" = the individual self (Katha 1.2.18); sadasacchabdanirdiṣṭaṃ kāryakāraṇabhāvena avasthitaṃ prakṛtitattvam — sat = prakriti in its effect form (with name and form), asat = prakriti in its causal form; tatparaṃ — beyond both of these (prakriti and the soul) — the liberated self too; all are you.