瑜伽師地論略纂 12.168

12.168

論云「於餘一切乃至有加行有功用無相住中，得修廣大」者，此攝第六一分，共初地通攝第六、無相修。此皆修習無相修，如此廣大，非如初地初得，名前行修。

Regarding the treatise's statement, "In all the rest, up to the signless stage with effort and exertion, one attains vast cultivation": this subsumes a portion of the sixth, together with the first bhūmi comprehensively subsuming the sixth, the signless cultivation. These all cultivate signless cultivation to such vastness, unlike the initial attainment on the first bhūmi which is called preliminary cultivation.