Related for Bava Batra 168:11
תא שמע מדד ולא משך לא קנה מאי לאו בסימטא לא ברשות הרבים אי הכי אימא רישא משך ולא מדד קנה משיכה ברשות הרבים מי קניא
or not? — Come and hear what R. Jannai said in the name of Rabbi: [In the case of] a courtyard in partnership, [the partners] may acquire possession [of objects they buy] from one another. Does not this [refer to the case where the objects bought lie] on the [bare] ground?<span class="x" onmousemove="('comment',' And since objects are acquired in a partner's courtyard, they are also acquired in an alley which is regarded as the property of those who happen to be there. This being the report of R. Jannai, the master of R. Johanan, and being also in agreement with that which R. Assi stated in the name of R. Johanan, it must have been accepted by R. Zera. ');"><sup>19</sup></span> — No; [this refers to the case when they were put] into his basket. This can also be supported by argument. For R. Jacob said in the name of R. Johanan: [If the buyer] measures and puts [them] in an alley. he does not acquire possession. Are not these<span class="x" onmousemove="('comment',' The reports of R. Assi and R. Jannai, on the one hand, and that of R. Jacob on the other. ');"><sup>20</sup></span>