Reference for Temurah 27:23

תמות וזכרות בבהמה ואין תמות וזכרות בעופות

But is this a general rule?<span class="x" onmousemove="('comment',' For the moment the Mishnah's statement is understood as meaning that all sacrifices of individuals can be males as well as females.');">¹⁶</span>

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