首楞嚴義疏注經 2.429

2.429

爾時，世尊憐愍阿難及諸大眾，將欲敷演大陀羅尼諸三摩提妙修行路。

At that time, the World-Honoured One, having pity on Ānanda and the great assembly, was about to elaborate the wondrous path of practice of the great dhāraṇī and of all the samādhis.