Reference for Bava Kamma 83:5

שפיר קאמר ר"ע

Was not this a good question on the part of R. Akiba? — R. 'Ulla the son of R. Idi said: [The implication drawn by R. Jose] is essential. For otherwise it might have occurred to you to apply [R. Akiba's] inference 'Men but not oxen' [exclusively to such] oxen as are comparable to men: Just as men are <i>Mu'ad</i>,<span class="x" onmousemove="('comment',' V. supra p. 68. ');">⁵</span>

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