Reference for Chullin 227:50

שהוא בשר ואסור לבשל בחלב

What they have in common is that each is flesh,<span class="x" onmousemove="('comment',' According to some MSS. the reading is 'it is milk and it is forbidden to cook in it' instead of 'is flesh etc.', and so it appears from Rashi too. V. Glos. of Maharam Schiff a.l.');">²³</span>

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