瑜伽論記 1.60

1.60

後二解五皆名地，此若但言瑜伽地，不知是誰之地，故標師名；但言師地，不言瑜伽，不知復是何師之地，由此總言瑜伽師地；但言瑜伽師不說地者，不欲唯明瑜伽假師，欲說彼師所依地法，令順修學成彼師故，證彼地故。

The latter two explanations hold that all five [divisions] are called stages. If one were to only say 'Yoga Stage', one would not know whose stage it is, so the name 'Master' is indicated; if one were to only say 'Master's Stage' without saying 'Yoga', one would not know again which master's stage it is; thus it is collectively called 'Stage of the Yoga Master' (Yogācārabhūmi). If one were to only say 'Yoga Master' without saying 'Stage', it would not be intended to explain merely the nominal master of yoga, but rather to explain the stages and teachings upon which that master relies, in order to make [practitioners] follow and cultivate them, accomplish that master, and realize those stages.