Kavyalankarasarasamgraha 7.49

7.49

vyākaraṇādau bharatādau ca kāvyavyapadeśo na prāptaḥ /
tataśca "vṛttadevādicaritaśaṃsi cotpīdyavastu ca /
kalāśāstrāśrayaṃ ceti caturdhā bhidyate punaḥ //

[it would follow that] grammar and the like, or the works of Bharata and the like, would not obtain the designation of poetry, / and therefore what Bhāmaha stated would be contradicted: “And it is divided into four kinds again: relating past deeds of gods and the like, an invented subject-matter, / based on arts, and based on treatises.”