Related for Eruvin 74:2
ואכתי סבר ר' יוסי אין ברירה והתניא עם הארץ שאמר לחבר קח לי אגודה אחת של ירק או גלוסקא אחת אינו צריך לעשר דברי רבי יוסי
said to a haber,<span class="x" onmousemove="('comment',' V. Glos. texukd');"><sup>3</sup></span> 'Buy for me a bundle of vegetables' or 'a loaf',<span class="x" onmousemove="('comment',' , one made of a certain brand of white flour.');"><sup>4</sup></span> [the latter]<span class="x" onmousemove="('comment',' Though he bought his own vegetables or loaf together with those of the 'am ha-arez without specifying which was for himself and which was for the other and though the seller also was an 'am ha-arez whose produce the haber tithes as demai.');"><sup>5</sup></span> need not tithe it;<span class="x" onmousemove="('comment',' He need only tithe that which he bought for himself.');"><sup>6</sup></span>