瑜伽論記 6.220

6.220

略義中，以兩番三義攝，初番中其受學學處亦入第三門攝也。上釋辨三竟。

In the brief meaning, it is subsumed under two sets of three meanings; in the first set, undertaking and training in the training precepts is also subsumed under the third gate. The above completes the explanation of distinguishing the three.