俱舍論疏 9.53

9.53

論「以卵生者至入胎無失」，答也。此有二意：一以先必入胎，故說入胎；二以當卵生，故名卵生。實是煮米磨麥，而言飯[麩-夫+少]者，從當立名。造作有為亦取果名。

On the Śāstra's 'Because the egg-born... there is no fault in speaking of entering the womb': this is the answer. Here there are two senses: first, because one must first enter the womb, it is spoken of as entering the womb; second, because one will be egg-born, it is called egg-born. It is really cooking rice and grinding wheat, but one speaks of 'cooked rice' and 'roasted flour', establishing the name based on what it will become. The production of conditioned dharmas also takes the name of the result.