Reference for Menachot 185:15

רב חסדא ורב יצחק בר אבדימי חד אמר אתיא סמיכה סמיכה מזקני עדה

For it was taught: Since the whole passage<span class="x" onmousemove="('comment',' Concerning the law of substitution.');">¹⁵</span> is stated in the masculine form, whence do we know<span class="x" onmousemove="('comment',' Lit., 'what is our end'.');">¹⁶</span>

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