俱舍論記 8.128

8.128

「見受胎生至息諸疑謗」者，就答中，一明現益、二明後益。此即現益，略有四種，或引釋種、或引餘類、或引同類、或復止謗，故受胎生（曹之言輩）。

"Seeing that taking birth from a womb [...] allays all doubts and slander": in the reply, the first part clarifies the present benefit, and the second clarifies the future benefit. This is the present benefit, which briefly has four kinds: drawing in the Śākya clan, drawing in other classes, drawing in his own class, or putting an end to slander; hence he took birth from a womb (the word *cao* [in the root text] means "class" or "peer").