Kautilya's Arthashastra 1.3.12

1.3.12

parivrājakasya jitendriyatvam anārambho niṣkiṃcanatvaṃ saṅgatyāgo bhaikṣavratam anekatrāraṇye ca vāso bāhyābhyantaraṃ ca śaucam //

That of an ascetic retired from the world (Parivrajaka) is complete control of the organs of sense, abstaining from all kinds of work, disowning money, keeping from society, begging in many places, dwelling in forests, and purity both internal and external.