The Compendium of Caraka 1.4.23

1.4.23

tatra ślokāḥ ---
yato yāvanti yairdravyairvirecanaśatāni ṣaṭ/
uktāni saṃgraheṇeha tathaivaiṣāṃ ṣaḍāśrayāḥ//

On this point there are verses:
From which [sources], how many, and with which substances the six hundred evacuatives
have been briefly taught here, as well as their six sources;