CC Madhya 20.338
namaḥ saṅkarṣaṇāya ca
tubhyaṁ bhagavate namaḥ
namaḥ — let me offer my respectful obeisances; te — unto You; vāsudevāya — Lord Vāsudeva; namaḥ — respectful obeisances; saṅkarṣaṇāya ca — also to Lord Saṅkarṣaṇa; pradyumnāya — to Lord Pradyumna; aniruddhāya — unto Aniruddha; tubhyam — unto You; bhagavate — unto the Supreme Personality of Godhead; namaḥ — my respectful obeisances.
“ ‘I offer my respectful obeisances unto the Supreme Personality of Godhead, expanded as Vāsudeva, Saṅkarṣaṇa, Pradyumna and Aniruddha.’
This is a prayer from Śrīmad-Bhāgavatam (11.5.29) spoken by Karabhājana Muni when he was questioned by Mahārāja Nimi, the King of Videha, about the incarnations in specific yugas and their method of worship. Karabhājana Muni was one of the nine Yogendras, and he met the King to inform him about future incarnations.