Talmud for Yevamot 204:11

“Wearing shoes”. It was stated: In all cases where they said that one may not wear shoes, when he departs on a trip he puts them on, when he arrives at a walled city he takes them off; this includes the mourner and the person in the ban²¹⁵Babli Mo`ed qaṭan15b. The Yerushalmi version is quoted by Or zarua§277.. There are Tannaim who state, one goes in slippers²¹⁶Latin impilia, -ium(pl/) “felt slippers”. on the day of Atonement; and there are Tannaim who state, one does not. Rav Ḥisda said, he who said one goes, in textile slippers, and he who said one does not go, in leather slippers²¹⁷Yebamot12:1, Note 35, Babli Yebamot102b.. Rebbi Isaac bar Naḥman visited Rebbi Joshua ben Levi in the night of the Great Fast²¹⁸The day of Atonement.; he came to him wearing laced shoes²¹⁹A leather sole with a textile upper part held together by laces.. He asked him, what is this? He answered, I am asthenic²²⁰Greek ʼασθενής. Since the rules of not wearing leather shoes are rabbinic, they are waved for health reasons.. Rebbi Samuel bar Naḥman visited Rebbi Joshua ben Levi in the night of a fast day²²¹A rabbinic fast day.; he came to him wearing laced shoes. He asked him, what is this? He answered, I am asthenic. They saw Rebbi Shammai walking in the night of a fast day in laced shoes. A student of Rebbi Mana instructed a relative of the Patriarch to wear laced shoes⁴¹The ninth benediction where in winter one prays for rain, Mishnah Berakhot5:2.. He asked him, from where? From Rebbi Joshua ben Levi. For Rebbi Joshua ben Levi said, I am asthenic.