Reference for Bava Batra 290:9
אמר רבי זירא אמר רב מאי דכתיב (משלי טו, טו) כל ימי עני רעים זה בעל גמרא וטוב לב משתה תמיד זה בעל משנה
Rich in products<span class="x" onmousemove="('comment',' Lit., '(things that are) measured', ');"><sup>38</sup></span> [and] rich in stores<span class="x" onmousemove="('comment',' Lit., 'cellar', 'store-room'. ');"><sup>39</sup></span> — that is a master of traditions.<span class="x" onmousemove="('comment',' (Who keeps his store of traditional teachings in readiness for guidance whenever the occasion arises.] ');"><sup>40</sup></span> All. [however]. are dependent on<span class="x" onmousemove="('comment',' Such as fields and vineyards. ');"><sup>32</sup></span> the master of wheat. [i.e.] Gemara.<span class="x" onmousemove="('comment',' The discussions and interpretations of the Mishnah and Baraithoth, and the decisions arrived at, which are indispensable for right practice and conduct. ');"><sup>41</sup></span> R. Zera said in the name of Rab: What [character is meant] by the Scriptural text, <i>All the days of the poor are evil</i>?'<span class="x" onmousemove="('comment',' Prov. XV, 15. ');"><sup>42</sup></span>