Reference for Keritot 53:55

הרי כמה שנים גדל זה בינינו ולא שמע הלכה זו ממני

in the habit of revising all his studies every month before him [R'Johanan]?<span class="x" onmousemove="('comment',' Then surely R. Johanan must have taught his pupil this ruling.');">³³</span>

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