大方廣佛華嚴經隨疏演義鈔 16.42

16.42

疏「十海之中含於體用」者，即初會也。十海者，一一切世界海、二一切眾生海、三一切諸佛海、四一切法界海、五一切眾生業海、六一切眾生根海、七一切諸佛法輪海、八一切三世海、九一切如來願力海、十一切如來神變海。七九與十此三是用，餘皆是體。此十本具，皆是所證，故名為理。十之相差，是事法界。十之真性，是理法界。理事相融，並為所證之理，故云「十海是理」。

As for the commentary's "The ten oceans contain essence and function": this is the first assembly. The ten oceans are: first, the ocean of all worlds; second, the ocean of all sentient beings; third, the ocean of all Buddhas; fourth, the ocean of all dharmadhātus; fifth, the ocean of the karma of all sentient beings; sixth, the ocean of the faculties of all sentient beings; seventh, the ocean of the wheels of Dharma of all Buddhas; eighth, the ocean of all three times; ninth, the ocean of the power of vows of all Tathāgatas; tenth, the ocean of the spiritual transformations of all Tathāgatas. The seventh, ninth, and tenth—these three are function; the rest are all essence. These ten are fundamentally possessed, and all are that which is realized; hence they are named principle. The difference among the characteristics of the ten is the dharmadhātu of phenomena. The true nature of the ten is the dharmadhātu of principle. Principle and phenomena mutually fuse, together forming the realized principle; hence it is said, "the ten oceans are principle."