1)
TOSFOS DH Ha v'Ha Garmu Lei
תוספות ד"ה הא והא גרמו ליה
(SUMMARY: Tosfos explains how both of them caused this.)
פי' הראב"ד הא כדעבד דאחוי הקידה קמי רבי איטלע
(a)
Explanation: The Ra'avad explains that while he was showing Kidah (prostration) in front of Rebbi, he became lame.
והא דהטיח דברים כלפי מעלה גרמא ליה דאיטלע.
1.
His critical words towards Shamayim caused that he became lame.