瑜伽師地論分門記 6.252

6.252

分九中第六依界明差別義分四　一明欲界繫差別分二。一問。二答　二明色界繫差別分二。一問。二答　三明無色界繫差別分二。一問。二答　四明不繫差別分二。一問。二答。

Within the nine divisions, the sixth, clarifying the distinctive meanings based on the realms, has four parts: 1. Clarifying the distinction of bound to the desire realm, which has two parts: (1) question, (2) answer; 2. Clarifying the distinction of bound to the form realm, which has two parts: (1) question, (2) answer; 3. Clarifying the distinction of bound to the formless realm, which has two parts: (1) question, (2) answer; 4. Clarifying the distinction of unbound, which has two parts: (1) question, (2) answer.