Reference for Chullin 270:17

למעוטי שותפות עובד כוכבים

And the Rabbis? - [They distinguish thus:] A gentile is not subject to this law, whereas an Israelite is.<span class="x" onmousemove="('comment',' It is not necessary that the sheep shall belong wholly to one person, all that the law insists upon is that it shall belong to parties each subject to the law, sc. Israelites, for, after all, the people of Israel are often referred to as a single unit.');">⁹</span>

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