金剛經纂要刊定記 4.19

4.19

三界普度者。釋廣大義。一切眾生不越三界，三界普度方名廣大，若一眾生不與度者，非廣大也。故經標云「所有一切眾生」，即統該也。梵語僕呼繕那，此云眾生。《智度論》云：「五蘊和合中生，故云眾生。」《瑜珈論》云：「思業為因，卵、胎、濕、化為緣，五蘊初起名之為生。」類即流類，即胎卵等四也。

Regarding "universally delivering the three realms": this explains the meaning of "vast." All sentient beings do not exceed the three realms; universally delivering the three realms is only then called vast. If a single sentient being is not delivered, it is not vast. Therefore the sūtra indicates: "whatever kinds of sentient beings there are," which encompasses them comprehensively. In Sanskrit it is bahujana, which here means "sentient beings." The Mahāprajñāpāramitopadeśa says: "Born amidst the aggregation of the five aggregates, they are therefore called sentient beings." The Yogācārabhūmi-śāstra says: "With intentional karma as cause, and egg, womb, moisture, and transformation as conditions, the initial arising of the five aggregates is called birth." "Kinds" means types or classes, namely the four such as womb-born and egg-born.