Reference for Pesachim 235:6

א"ר יוחנן קשין מזונותיו של אדם כפליים כיולדה דאילו ביולדה כתי' (בראשית ג, טז) בעצב ובמזונות כתי' (בראשית ג, יז) בעצבון

What is meant by the verse, O give thanks unto the Lord, for He is good?<span class="x" onmousemove="('comment',' Ps. CXXXVI, 1 .');">¹¹</span> Give thanks unto the Lord who exacts man's debts by means of His goodness:<span class="x" onmousemove="('comment',' I.e., from what He has granted to man.');">¹²</span> the wealthy man through his ox and the poor man through his sheep,<span class="x" onmousemove="('comment',' When people must suffer loss in expiation of wrong, the loss is regulated according to their means.');">¹³</span>

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