SB 03.01.34 apisvid aste bhagavan sukham vo... cited

Expressions researched:
"apisvid aste bhagavan sukham vo" |"mano-mayam sattva-turiya-tattvam" |"yah satvatam kama-dugho niruddhah" |"yam amananti sma hi sabda-yonim"

SB Canto 3

SB 3.1.34, Translation and Purport:

May I inquire whether Aniruddha is doing well? He is the fulfiller of all the desires of the pure devotees and has been considered from yore to be the cause of the Ṛg Veda, the creator of the mind and the fourth Plenary expansion of Viṣṇu.

Ādi-caturbhuja, the original expansions from Baladeva, are Vāsudeva, Saṅkarṣaṇa, Pradyumna and Aniruddha. All of Them are viṣṇu-tattvas, or nondifferent Personalities of Godhead. In the incarnation of Śrī Rāma, all these different expansions appeared for particular pastimes. Lord Rāma is the original Vāsudeva, and His brothers were Saṅkarṣaṇa, Pradyumna and Aniruddha. Aniruddha is also the cause of Mahā-viṣṇu, from whose breathing the Ṛg Veda appeared. All this is nicely explained in the Mārkaṇḍeya Purāṇa. In the incarnation of Lord Kṛṣṇa, Aniruddha appeared as the son of the Lord. Lord Kṛṣṇa in Dvārakā is the Vāsudeva expansion of the original group. The original Lord Kṛṣṇa never leaves Goloka Vṛndāvana. All the plenary expansions are one and the same viṣṇu-tattva, and there is no difference in Their potency.

CC Adi-lila

CC Adi 5.41, Purport:

"Considering all these points, one should understand that Śaṅkarācārya's statement that Saṅkarṣaṇa is born as a jīva is completely against the Vedic statements. His assertions are completely refuted by the above arguments. In this connection the commentary of Śrīdhara Svāmī on Śrīmad-Bhāgavatam (SB 3.1.34) is very helpful."

For a detailed refutation of Śaṅkarācārya's arguments attempting to prove Saṅkarṣaṇa an ordinary living being, one may refer to Śrīmat Sudarśanācārya's commentary on the Śrī-bhāṣya, which is known as the Śruta-prakāśikā.