Yoma 52a, bottom baraita: And wasn’t it taught in a baraita that Yosef of Hutzal is the one called Yosef the Babylonian, as Hutzal is a city in Babylonia; and he is also the person called Isi ben Yehuda, as Isi is a shortened form of Yosef; he is Isi ben Gur Arye, a nickname for Yehuda; he is Isi ben Gamliel; he is Isi ben Mahalalel? And what is his real name? Isi ben Akiva is his name. If they are indeed the same person, Isi ben Yehuda, who is Yosef of Hutzal, says that there are only five verses whose punctuation is unclear, whereas above he adds an additional verse.https://www.sefaria.org/Yoma.52b.6?ven=William_Davidson_Edition_-_English&vhe=William_Davidson_Edition_-_Vocalized_Aramaic&lang=bi&with=all&lang2=en
