Reference for Zevachim 231:15

מ"ט דמ"ד לא קרבו דכתיב (שיר השירים ד, טז) עורי צפון ובואי תימן תתנער אומה שמעשיה בצפון ותבוא אומה שמעשיה בצפון ובדרום

What is the reason for the view that the Children of Noah did offer peace-offerings? - Because it is written, And Abel, he also brought of the firstlings of his flock and of the fa [heleb] thereof.<span class="x" onmousemove="('comment',' Gen. IV, 4.');">¹⁸</span> What thing is it whose 'fat' [heleb] [only] is offered on the altar, but the whole of it is n offered on the altar?

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