楞伽阿跋多羅寶經註解 3.186

3.186

此段下引事證失。釋提桓因者，帝釋之異名也。持龍形像者，謂變作龍身也。要，約也。《入楞伽》云：「作是要言：『憍尸迦！我共汝論，汝若不如我，當破汝千輻之輪。我若不如，斷一一頭以謝所屈。』」即以釋法者，謂即以帝釋所造論法為難。墮負即不勝，謂帝釋不勝也。乃至畜生者，如變作龍身之類也。又言世間論應當遠離者，謂彼論為害若此，可不慎歟。

From this section downward, events are cited to demonstrate the harm. 'Śakra Devendra' is an alternate name for the King of the Gods. 'Took the form of a dragon' means he transformed himself into the body of a dragon. 'Pledge' (要) means an agreement. The *Ru Lengqie* says: "He made this pact, saying: 'Kauśika! I shall debate with you. If you are not my equal, your thousand-spoked wheel shall be destroyed. If I am not your equal, let each of my heads be cut off to make amends for having yielded.'" 'Used Śakra's own methods' means he posed objections using the very doctrinal methods composed by Śakra himself. 'Fell into defeat' means failing to win, referring to Śakra's defeat. 'Even animals' refers to things such as this being transformed into the body of a dragon. Furthermore, when it says that worldly treatises must be stayed far away from, it means that since those treatises cause harm like this, how could one not be cautious?