Shankaracharya's commentary, trans. Alladi Mahadeva Sastry (1897)
[1]"Om, Tat, Sat": this has been taught to be the triple designation of Brahman. By that were made of old the Brahmanas, the Vedas, and the Yajnas.
BG 17.23
ॐ तत् सद् इति निर्देशो ब्रह्मणस् त्रिविधः स्मृतः । ब्राह्मणास् तेन वेदाश् च यज्ञाश् च विहिताः पुरा ॥
oṃ tat sad iti nirdeśo brahmaṇas tri-vidhaḥ smṛtaḥ | brāhmaṇās tena vedāś ca yajñāś ca vihitāḥ purā ||
"OṀ Tat Sat: triple name of Brahman — by which brāhmaṇas, Vedas, and yajñas were ordained in the beginning."
All public-domain translations
4 translations · all pre-1928 or released to public domain · sources
Swami Swarupananda, Srimad Bhagavad Gita (1909)
[4]"Om, Tat, Sat": this has been declared to be the triple designation of Brahman. By that were made of old the Brahmanas, the Vedas, and the Yajnas.
K.T. Telang, Sacred Books of the East Vol. 8 (1882)
[9]"Om, Tat, Sat" — this is said to be the triple designation of Brahman. By that were sanctioned in the beginning the Brahmanas, the Vedas, and the Yagnas.
K.M. Ganguli, The Mahabharata, Bhishma Parva (1883–96)
[13]"Om, Tat, Sat" — this is declared to be the triple designation of Brahman. By this were the Brahmanas and the Vedas and the Yajnas appointed in the beginning.