Reference for Bava Metzia 153:1
פסידא דפועלים לא סיירא לארעיה מאורתא פסידא דבעל הבית ויהיב להו כפועל בטל
the loss is the workers; if not, the loss is the employer's, and he must pay them as unemployed workers.<span class="x" onmousemove="('comment',' If the labourer had not inspected the land beforehand, he can plead. 'You know the nature of your soil and that work is impossible upon it after a heavy rain, and so should have informed me in time to find other work'; therefore the employer must bear the loss. If the labourer had seen it he should have known himself, therefore the loss is his. (So one interpretation of Asheri.) It may also refer to the employer's inspection, as in the previous note. (The weight of authority is in favour of referring the inspection to the employer himself. V. H.M. CCCXXX, 1 and [H], a.l.) ');"><sup>1</sup></span>