首楞嚴義疏注經 1.138

1.138

慶喜是佛堂弟，祖父相傳亦名同氣，或可但是兄弟同一氣類也。兄弟之序，上下相次，恩愛相屬，蓋自然而然，非使之然也，故曰均天倫。倫，理均等也。

"Ānanda is the Buddha's first cousin; being descended from the same grandfather is also called 'sharing the same breath', or it may simply mean brothers of the same category of breath. The order of brothers follows one another in rank, and their affection is naturally linked, being so spontaneously and not made to be so; hence it is called 'equal in natural kinship'. 'Kinship' means principle, being equal and uniform."} ],