This is from the second adhyāya of Ādi Śaṅkara’s bhāṣya on Bādarāyaṇa’s Brahmasūtra-s (an Advaita text), Sūtra-s 2.4.4–2.4.37 (starting towards the end of the fourth sūtra and continuing till the end of the pāda). The scribe is apparently the same as for EAP790/21/79 and EAP790/21/80.