[22] Therein, which volitional formations (saṅkhārā) are internal? Whatever volitional formations, of these or those beings, are internal, individual, one's own, personal, clung-to (upādinna) — namely, volition (cetanā) born of eye-contact … volition born of mind-contact: these are called internal volitional formations.
Therein, which volitional formations are external? Whatever volitional formations, of these or those other beings, of other persons, are internal, individual, one's own, personal, clung-to — namely, volition born of eye-contact … volition born of mind-contact: these are called external volitional formations.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.