SB 1.4.21

तत्रर्ग्वेदधरः पैलः सामगो जैमिनिः कविः ।
वैशम्पायन एवैको निष्णातो यजुषामुत ॥२१॥


tatrarg-veda-dharaḥ pailaḥ
sāmago jaiminiḥ kaviḥ
vaiśampāyana evaiko
niṣṇāto yajuṣām uta


tatraplugin-autotooltip__small plugin-autotooltip_bigtatra

about the well of nectar; all those; among the sons; among them; and there; as well as; at that time; at that very spot; because of; here; in Him; in such; in such a condition; in such a position; in such a subject matter; in such activities; in that; in that case; in that connection (getting out of the entanglement of material conditioning); in that connection; in that direction; in that dynasty; in that forest; in that function; in that heavenly planet; in that meeting; in that ninth period of Manu; in that period (the eleventh manvantara); in that period; in that period of Manu; in that place; in that sacrifice; in that sixth manvantara; in that way; in the assembly; in the battlefield; in the eighth manvantara; in the forest; in this manvantara; in this; in those manvantara periods; in those hellish planets; in victory or defeat; in whom; inside the house of Narakāsura; on that hill; on the bank of the river; on the spot; on this fact; standing there; than them; that; then; then and there; thereafter; therefore; therein; thereof; thereon; thereupon; to that household life; upon doing this; within the wide-open mouth of Kṛṣṇa.
—thereupon; ṛgplugin-autotooltip__small plugin-autotooltip_bigṛg

the professor of the Ṛg Veda.
-vedaplugin-autotooltip__small plugin-autotooltip_bigveda

(one who) knows; all knowledge; and of the revealed scripture; by the four Vedas (Sāma, Yajur, Ṛg and Atharva); can know; can understand; did know; do know; feels; he knew; He knows; he realizes; in knowledge; is fully aware; it knows; just try to know; know; know it; know very well; knows; like the Vedas; Lord Śiva could understand; of knowledge; of the Vedas; of the four Vedas; the Vedas; the four Vedas (Sāma, Yajur, Ṛg and Atharva), the original knowledge given by the Supreme Personality of Godhead; the Vedic knowledge; the Vedic literature; transcendental knowledge; understand; understands; understood; Vedic injunctions; Vedic literature; Vedic literatures (books of knowledge); Vedic principles; Vedic scriptures; Vedic study; who knows; you know.
-dharaḥplugin-autotooltip__small plugin-autotooltip_bigdharah

holding; possessing; putting on; the planet earth.
—the professor of the Ṛg Veda; pailaḥplugin-autotooltip__small plugin-autotooltip_bigpailaḥ

the ṛṣi named Paila.
—the ṛṣi named Paila; sāmaplugin-autotooltip__small plugin-autotooltip_bigsama

and equal; equal; equal level; equal or proper; equal to; equally; equiposed; just like; like; of equal; same; symmetrical; the same; unaltered.
-gaḥplugin-autotooltip__small plugin-autotooltip_biggah

bulls; cows; the cows.
—that of the Sāma Veda; jaiminiḥplugin-autotooltip__small plugin-autotooltip_bigjaiminiḥ

the ṛṣi named Jaimini.
—the ṛṣi named Jaimini; kaviḥplugin-autotooltip__small plugin-autotooltip_bigkaviḥ

a great poet or orator; a learned person; a son named Kavi; and a learned scholar; another son, known as Kavi; being purified in consciousness; devotee; great scientist; he who can understand the subtle cause of creation (Lord Brahmā); highly qualified; Kavi; learned; omniscient; one who is advanced in knowledge; seeing his own interest; the enlightened person; the great learned sage; the supreme inspirer; the thinker; very learned.
—highly qualified; vaiśampāyanaḥplugin-autotooltip__small plugin-autotooltip_bigvaiśampāyanaḥ

the ṛṣi named Vaiśampāyana.
—the ṛṣi named Vaiśampāyana; evaplugin-autotooltip__small plugin-autotooltip_bigeva

alone; also; also the word eva; although; as; as it is; as it were; as much as; as they are; at all; at that time; certainly; certainly,; certainty; completely; definitely; even; ever; exactly; exactly like; factually; Himself; immediately; in fact; in this way; indeed; it is all like that; just; just so; like; like that; like this; of course; on the very; only; quite; simply; so; surely; the word eva; they are; thus; truly; undoubtedly; very; without doubt.
—only; ekaḥplugin-autotooltip__small plugin-autotooltip_bigekaḥ

alone; being one without a second, You are everything; by the name Eka; He, one alone; individual; one; one alone; one and the same; one only; one son; one without a second; only; only one; originally one; that one Supreme Personality of Godhead; the one; the one Śrī Kṛṣṇa; the only one; the single person; the supreme one; without any duplicate.
—alone; niṣṇātaḥplugin-autotooltip__small plugin-autotooltip_bigniṣṇātaḥ

being merged in; fully realized; very experienced; well versed.
—well versed; yajuṣāmplugin-autotooltip__small plugin-autotooltip_bigyajuṣām

of all sacrifices; of the Yajur Veda.
—of the Yajur Veda; utaplugin-autotooltip__small plugin-autotooltip_biguta

also; although; and; and what to speak of begetting one hundred sons in each of them; as also; as also, what to speak of; celebrated; certainly; described; either; else; even; exactly; glorified; increasing; indeed; is, however; it is said; it is so enjoined; it is so said; known; moreover; must; or; or else; or otherwise; said; so it is said; spoken; there is; to speak; to speak of; what to speak of; whether.


After the Vedas were divided into four divisions, Paila Ṛṣi became the professor of the Ṛg Veda, Jaimini the professor of the Sāma Veda, and Vaiśampāyana alone became glorified by the Yajur Veda. 


The different Vedas were entrusted to different learned scholars for development in various ways.