首楞嚴義疏注經 5.140

5.140

爾時，世尊普告眾中諸大菩薩及諸漏盡大阿羅漢：「汝等菩薩及阿羅漢，生我法中，得成無學。吾今問汝，最初發心悟十八界，誰為圓通？從何方便入三摩地？」

At that time, the World-Honoured One addressed the great bodhisattvas and the great arhats whose outflows were exhausted in the assembly: "You bodhisattvas and arhats, born into my Dharma, have accomplished the state of non-learning. I now ask you: when you first gave rise to the mind and awakened to the eighteen realms, which was perfect penetration? By what expedient means did you enter samādhi?"