Reference for Eruvin 166:2

דכתיב (שמות טז, לו) והעומר עשירית האיפה הוא מכאן אמרו ז' רבעים קמח ועוד חייבת בחלה שהן ו' של ירושלמית שהן ה' של ציפורי

And what was the size of the dough of the wilderness? The one which is described: Now an omer is the tenth part of an ephah,<span class="x" onmousemove="('comment',' Ex. XVI, 36.');">²</span> from which it has been deduced<span class="x" onmousemove="('comment',' Since an 'omer is a tenth part of an ephah which (cf. Men. 77a) equals three se'ah, an 'omer = 3/10 se'ah = 3 X 6/10 kab = 3 X 6 X 4/10 log = 36/5 = 7 1/5 log = (since a log = 6 eggs) 7 log and 1 1/5 of an egg.');">³</span>

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