Genesis 21:16
21:16 Then she went and sat down by herself across from him at quite a distance, about a bowshot away; for she thought, “I refuse to watch the child die.” So she sat across from him and wept uncontrollably.
Genesis 32:16
32:16 He entrusted them to his servants, who divided them into herds. He told his servants, “Pass over before me, and keep some distance between one herd and the next.”