俱舍論頌疏論本 27.102

27.102

此各有二種，謂似自他身者，此二界化各有二種：一似自身化、二似他身化。身在欲界，化有四種：謂作欲界自他二化，及作色界自他二化。身在色界化亦有四種，如欲界說，故總成八。

Regarding "these each have two kinds, namely resembling one's own or another's body": transformations of these two realms each have two kinds: 1. transformations resembling one's own body, and 2. transformations resembling another's body. When one's body is in the desire realm, transformations are of four kinds: making the two transformations of self and other in the desire realm, and making the two transformations of self and other in the form realm. When one's body is in the form realm, transformations are also of four kinds, just as stated for the desire realm; thus altogether there are eight.