Śaṅkaraon Brahma Sūtra 3.3.66

Scripture moreover shows that the meditations do not go together, viz. in the following passage, ‘A Brahman priest who knows this saves the sacrifice, the sacrificer, and all the priests’ (Klu Up. IV, .17, 10). For if all meditations were to be combined, all priests would know them all, and the text could not specially announce that the Brahman priest possessing a certain knowledge thereby saves the others.—The meditations may there- fore, according to one’s liking, be cither combined or optionally employed. ^ A remark refuting the averment made in Siltra 62. ^ And this is meant to refute the second interpretation given of SOtra 64.