Reference for Eruvin 35:22

בשלמא למאן דאמר פרצוף היינו דכתיב (בראשית ה, ב) זכר ונקבה בראם אלא למאן דאמר זנב מאי זכר ונקבה בראם

According to him who explained: 'a full face' it is easy to see why And He formed [wa-yizer]<span class="x" onmousemove="('comment',' .');">⁵⁴</span> was written in Scripture<span class="x" onmousemove="('comment',' Gen. II, 7. rum vrum');">⁵⁵</span> with two yods;<span class="x" onmousemove="('comment',' The two yods in the verb of the rt. signifying 'formation' or 'shaping' of a face () and alluding to the two faces.');">⁵⁶</span>

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