瑜伽論記 11.290

11.290

菩薩成就五種不希奇法，而名成就甚希奇法者，景云：利益他時即如己事名不希奇，尋其根本無由大悲攝他為自，故知希奇。

Regarding "the bodhisattva accomplishes five kinds of unexceptional dharmas, yet is said to accomplish extremely exceptional dharmas": Jing states: "When benefiting others, it is just like one's own affairs, so it is called 'unexceptional'; tracing its root, there is no other reason than great compassion embracing others as oneself, hence it is known to be exceptional."