Related for Chullin 181:56

אמר ר' יוסי ברבי חנינא מאי דכתיב

Because they do not stretch out their hands to robbery.<span class="x" onmousemove="('comment',' And whatever they acquire by their toil and honest dealing is therefore very dear to them.');">³²</span>

Maharam Schiff on Chullin