The Compendium of Caraka 6.30.335

6.30.335

cikitsā cāpi nirdiṣṭā śiṣyāṇāṃ hitakāmyayā/
śukradoṣāstathā cāṣṭau nidānākṛtibheṣajaiḥ//

and their treatment have been taught, out of a desire for the welfare of students; / and likewise the eight semen disorders, with etiologies, symptoms, and remedies;