Caitanya-caritāmṛta 20.319
manvantarāvatāra ebe śuna, sanātana asaṅkhya gaṇana tāṅra, śunaha kāraṇa
[manvantaraavataara ebe shuna, sanaatana asankhya ganana taanra, shunaha kaarana]
Blended reading (Sanskrit + English inline)
manvantarāvatāra ebe śuna, sanātana asaṅkhya gaṇana tāṅra, śunaha kāraṇa
“O Sanātana, now just hear about the incarnations who appear during the reign of each Manu [manvantara-avatāras]. They are unlimited, and no one can count them. Just hear of their source.
My note
Source: vedabase.io