Rabbi Yonah Struk the Master in Almeria asked of the Ra'avad and of our teacher Zerachyah HaLevi in the year 4971, and from the fact that they were together in the yeshiva, it is evident that the Ra'avad who responded was the latter one, and there were two Ra'avads, [(Shomer HaDat, letter 52, section 2). And I need to examine this, for Rabbi Zerachyah was in the year 4530 or 4910]: