According to Śrīla Jīva Gosvāmī’s statement, in accordance with authoritative sources, Lord Kṛṣṇa is the source of all other incarnations. It is not that Lord Kṛṣṇa has any source of incarnation. All the symptoms of the Supreme Truth in full are present in the person of Lord Śrī Kṛṣṇa, and in the Bhagavad-gītā the Lord emphatically declares that there is no truth greater than or equal to Himself.
His Holiness Jayapataka Swami Maharaj
1990, Jan 1st, SB class, @ New Talavan, USA