Reference for Eruvin 105:18

ראשונים ר"ע אחרונים ר"א בן שמוע איכא דאמרי ראשונים ר' אלעזר בן שמוע אחרונים ר' אושעיא בריבי ואנו כמלא נקב מחט סידקית

For did not R'Johanan state, R'Oshaia Beribi had twelve disciples and I spent eighteen days among them and gained a knowledge of every one's intellectual powers<span class="x" onmousemove="('comment',' Lit., 'heart'.');">³⁴</span> and of every one's wisdom? Now, is It likely that he gained a knowledge of every one's intellectual powers and of every one's wisdom and yet did not learn any Gemara?<span class="x" onmousemove="('comment',' Except the one word in our MISHNAH: On Gemara v. Glos.');">³⁵</span>

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