Reference for Bava Metzia 66:10

<big><strong>גמ׳</strong></big> למה ליה למתני בהמה ולמה ליה למתני כלים

— This refers to scholars; <i>Your brethren said</i>, to students of Scripture; that hate you — to students of the Mishnah;<span class="x" onmousemove="('comment',' There was a rivalry (perhaps amounting to enmity) between those who confined themselves exclusively to the Mishnah and those who developed a Gemara — i.e., discussion — upon it; cf. Sot. 22a. ');">⁹</span>

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