The Compendium of Kāśyapa 1.26.3.p1

1.26.3.p1

tatra bhiṣak sutīrtho nyāyenārṣajñānaprāpto vijñānavānanekaśo dṛṣṭakarmā
viditasiddhayogo dakṣo dakṣiṇaḥ śuciranuddhataveṣaḥ sarvabhūteṣu bandhubhūtaḥ

Among them, the physician should be of good lineage of instruction, properly endowed with the knowledge of the seers, learned, experienced through repeatedly observed practice,
knowledgeable in proven formulations, competent, courteous, pure, modest in dress, friendly toward all beings,