Chapter 17: Sraddhatraya Vibhaga Yoga, verse 23
तत्सदिति निर्देशो ब्रह्मणस्त्रिविधः स्मृतः।
ब्राह्मणास्तेन वेदाश्च यज्ञाश्च विहिताः पुरा ॥
Say itoṁ tat sad iti nirdeśho brahmaṇas tri-vidhaḥ smṛitaḥ
brāhmaṇās tena vedāśh cha yajñāśh cha vihitāḥ purā
Translation
"Om Tat Sat": This has been declared to be the triple designation of Brahman. By that, the Brahmanas, the Vedas, and the sacrifices were created formerly.
Swami Sivananda
"Om-tat-sat" - this is considered to be the threefold designation of Brahman. The Brahmanas, Vedas, and sacrifices were ordained by that in days of yore.
Swami Gambirananda
Follows the commentary of Shankara (Advaita).
Om, Tat, Sat—thus, Brahman is denoted by this threefold expression. In the past, Brahmanas, the Vedas, and sacrifices were ordained in association with these.
Swami Adidevananda
Follows the commentary of Ramanuja (Vishishtadvaita).
OM TAT SAT: This is held to be the three-fold indication of Brahman. Through this, the Vedas and sacrifices were fashioned by Brahma in the past.
Dr. S. Sankaranarayan
Follows the commentary of Abhinavagupta (Kashmir Shaivism).
Om Tat Sat is the triple designation of the Eternal Spirit, by which the Vedic Scriptures, ceremonials, and sacrifices were ordained of old.
Shri Purohit Swami
ऊँ, तत् और सत् -- इन तीनों नामोंसे जिस परमात्माका निर्देश किया गया है, उसी परमात्माने सृष्टिके आदिमें वेदों, ब्राह्मणों और यज्ञोंकी रचना की है।
Swami Ramsukhdas
'ऊँ, तत् सत्' ऐसा यह ब्रह्म का त्रिविध निर्देश (नाम) कहा गया है; उसी से आदिकाल में (पुरा) ब्राहम्ण, वेद और यज्ञ निर्मित हुए हैं।
Swami Tejomayananda
Classical commentariesFor deeper study. Most are in the original Sanskrit.
Advaita
Non-dual: the self and the absolute are one.
Vishishtadvaita
Qualified non-dual: souls are real parts of the divine.
Dvaita
Dual: the soul and God are eternally distinct.
Shuddhadvaita
Pure non-dual, centred on grace and devotion.
Kashmir Shaivism
The Gita read through Trika Shaiva philosophy.
Modern teachers
20th-century teachers writing for today's readers.