佛祖統紀 4.19

4.19

I comment: The Tathāgata universally announced to the great assembly with voice and light, and among the six destinies, those who were able to speak to one another and exhort him were surely manifestations of great provisional leaders; thus they were able to pass the word along in succession to the multitudes of the three wretched destinies experiencing actual retribution. Therefore, when this sutra lists the assembly, there are those designated as kings among the devas, the eight classes, lions, elephants, birds, and beasts; this intent can be understood from that.