俱舍論記 1.278

1.278

「又《多界經》至十八界攝」者，別攝界異名。六十二界，謂三種六、六種三、一種四、兩種二，更加十八界，故成六十二，隨其所應十八界攝。出體相攝，如次別明。

Regarding "Furthermore, the *Bahudhātuka-sūtra* [...] are subsumed under the eighteen dhātus": This specifically subsumes the alternative designations of the dhātus. The sixty-two dhātus refer to three sets of six, six sets of three, one set of four, and two sets of two, plus the eighteen dhātus, thus making sixty-two; as appropriate, they are subsumed under the eighteen dhātus. The presentation of their substantial entities and mutual subsumption will be explained individually in proper order.