Srimad Bhagavatam

References to text SB 1.3.28
SB 1.3.28: All of the above-mentioned incarnations are either plenary portions or portions of the plenary portions of the Lord, but Lord Śrī Kṛṣṇa is the original Personality of Godhead. All of them appear on planets whenever there is a disturbance created by the atheists. The Lord incarnates to protect the theists.

Text â„–
O young cowherd boy! O ocean of mercy! O husband of Laká¹£mÄ«, the ocean''s daughter! O killer of Kaá¹sa! O merciful benefactor of Gajendra! O MÄdhava! O younger brother of RÄma! O spiritual master of the three worlds! O lotus-eyed Lord of the gopÄ«s! I know no one greater than You. Please protect me.
Mukunda-mala-stotra
MM 44