Related על ביצה 5:3

Livestock and implements are judged by the feet of the owners. If he hands over his cattle to his son or to a shepherd, these are judged according to his feet. If it concerns utensils intended for one of the brothers living in the house, so these are judged by his feet. But if they are not destined, they can be taken there where all are going. One may roam in the north according to his Eruv in the south, and in the south according to his Eruv in the north; but when he has divided the territory, he shall not move out of his place.