瑜伽論記 10.533

10.533

次明六度是佛本修。於中有二：初、總明苦行依止六度；二戒唯依施下，別明苦行依止差別。

Next, it explains that the six perfections are the Buddha's original practice. In this there are two: first, generally explaining that austerities rely upon the six perfections; second, from 'Morality relies solely upon generosity' downward, specifically explaining the distinctions in how austerities rely upon them.