Non-soul - One of the nine Tattvas (categories of truth);
it is that Tattva, which is devoid of consciousness (i.e. cognitive activity). It is of five types: Dharma (Dharmāstikāya (the fundamental substance qua medium of motion)), adharma (Adhartnāstikāya (the fundamental substance qua medium of rest)), ākāśa (Ākāśāstikāya (the fundamental substance qua medium of space)), Kāla (time) and Pudgala (physical substance).
acetanaḥ ajīvaḥ.
(Jaisidī 3.19)
ajjīyo puṇa neo, puggala dhammo adhamma āyasaṃ.
kālo...
(Bṛdrasaṃ 15)