Reference for Bava Kamma 197:10

לימא דרב ששת פליגא אדרב אסי אמר שמואל בר אחא בשליחא דאיגרתא

But according to what we assumed previously that he was not hired for stamping,<span class="x" onmousemove="('comment',' But for the completion of a certain undertaking, [in which case he would be a contractor and in a sense a vendor and yet the injunction of not delaying the payment of the hire applies.] ');">¹⁸</span> [this ruling] would have been a support to [the view of] R. Shesheth, for when it was asked of R. Shesheth<span class="x" onmousemove="('comment',' V. B.M. 112a. ');">¹⁹</span>

Jastrow

Jastrow