yadyapi - although; kahiye - I say; tāṅre - to Him; kṛṣṇera - of Lord Kṛṣṇa; kalā - part of the part; kari - making; matsya - the fish incarnation; kūrma-ādi - the tortoise incarnation and others; avatārera - of all these incarnations; tiṅho - He; avatārī - the original source.

Although Kāraṇodaśāyī Viṣṇu is called a kalā of Lord Kṛṣṇa, He is the source of Matsya, Kūrma and the other incarnations.