諸經要集 17.36

17.36

今此頌中。尊者舍利子。作師子吼。說三解脫門。謂於初句。說無相解脫門。於第二句。說空解脫門。於後二句。說無願解脫門。

Now in this verse, the venerable Śāriputra roared the lion's roar and expounded the three gates of liberation: that is, in the first line, he expounded the signless gate of liberation; in the second line, he expounded the emptiness gate of liberation; and in the latter two lines, he expounded the wishless gate of liberation.