ר' הלל

Rabbi Hillel said that there is no Messiah for Israel [(Part 98b)]. In the time of Rav Yosef [there (99a) Rav Yosef said that the Master showed him to Hillel (who told him that he was in the generation of Rav Yosef, and perhaps he is Rabbi Hillel who asked Rava or the aforementioned Hillel who taught)].