The Compendium of Caraka 7.7.50

7.7.50

mūtrajānāṃ ca rogāṇāṃ vidhijñenāvacāritaḥ/
pathyādhātryurubūkāṇāṃ prasṛtau dvau trivṛtpalam//

and against diseases born of urine, administered by one knowing the procedure. / Two prasṛtis of harītakī, āmalakī, and castor [seeds], and one pala of trivṛt;