Mishnayos Kiddushin Perek 2 Mishnah 4

In the case of one who says to his agent: Go and betroth for me so-and-so in such and such a place, and the agent went and betrothed her in a different place, she is not betrothed, since he instructed that the betrothal take place in a particular location. But if he said: Go and betroth the woman for me, she is in such and such a place; and the agent betrothed her in a different place, she is betrothed, since he did not mean that the agent should betroth her specifically there, but was merely telling him where to find her.

הָאוֹמֵר לִשְׁלוּחוֹ, צֵא וְקַדֵּשׁ לִי אִשָּׁה פְלוֹנִית בְּמָקוֹם פְּלוֹנִי, וְהָלַךְ וְקִדְּשָׁהּ בְּמָקוֹם אַחֵר, אֵינָהּ מְקֻדֶּשֶׁת. הֲרֵי הִיא בְמָקוֹם פְּלוֹנִי, וְקִדְּשָׁהּ בְּמָקוֹם אַחֵר, הֲרֵי זוֹ מְקֻדֶּשֶׁת: