大方廣圓覺修多羅了義經略疏 1.200

1.200

時成就也。師資合會，說聽究竟，總言一時。一時者，簡異餘時。時者，隨世假立。如來說經，時有無量，不能別舉，一言略周，故但云一時。如《涅槃》云：「一時，佛在恒河岸」等。又諸方時分延促不同，故但言一時。若約當宗，即說聽之時，心境泯、理智融，凡聖如本，始會此諸二法皆一之時。

This is the fulfillment of time. The meeting of teacher and disciple, and the ultimate completion of preaching and listening, are collectively called "one time". "At one time" distinguishes it from other times. Time is conventionally established in accord with the world. When the Tathāgata expounds a sūtra, the times are immeasurable and cannot be separately enumerated; one word briefly encompasses them, hence it merely says "at one time". As the *Mahāparinirvāṇa-sūtra* says: "At one time, the Buddha was on the bank of the Ganges," and so forth. Moreover, the divisions and lengths of time in various regions differ, hence it merely says "at one time". If based on our own school, at the very time of preaching and listening, mind and object vanish, principle and wisdom blend, ordinary and sage are as their origin—it is the time when these various dualities are initially unified into one.