俱舍論記 3.143

3.143

「論曰至立圓滿名」者，釋上兩句。已斷之言，簡異正斷，以正斷時猶成善故。彼若極少成就八根，據漸捨命故唯身根，義便釋受。能受名受從用立名，受性名受當體立名。如鏡圓滿性故立圓滿名，亦當體立名。

Regarding 'The commentary says... up to: establishing the name "perfection"': this explains the upper two lines. The word 'severed' distinguishes from 'in the process of severing', because at the time of severing one still possesses good [faculties]. That they possess at minimum eight faculties is based on the gradual relinquishment of life, hence body faculty alone. As an incidental point, sensation is explained. Being able to experience is called sensation, naming it from its function; the nature of experiencing is called sensation, naming it from its intrinsic essence. Just as a mirror is given the name 'perfection' because of its perfection nature, it is also named from its intrinsic essence.