Reference for Taanit 46:15

רבי יוסי בר אבין הוה שכיח קמיה דר' יוסי דמן יוקרת שבקיה ואתא לקמיה דרב אשי

Two disciples used to attend [the discourses of] R'Isaac B'Eliashab and they said to him, Master, pray that we may become very wise. He replied: Once I had the power to do this, but now I no longer possess this power.<span class="x" onmousemove="('comment',' Lit., 'it was with me and l dismissed her'. ,reurs');">⁷</span> R'Jose B'Abin used to attend [the discourses of] R'Jose of Yokereth.<span class="x" onmousemove="('comment',' Probably to be identified with V. supra 21b.');">⁸</span> Later he left him and went to those of R'Ashi.

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