Numbers 9:6-12

ISV(i) 6 Special Passover RulesBut there were men who couldn’t observe the Passover that day because they had come in contact with a corpse. That very day, they approached Moses and Aaron 7 and asked, “Why can’t we bring an offering to the LORD at the appointed time among the Israelis, even though we are unclean because we came in contact with a corpse?”
8 “Wait while I hear what the LORD has to say about you,” Moses replied.
9 Then the LORD told Moses, 10 “Instruct the Israelis that when any of you or your descendants becomes unclean due to contact with a corpse, or if he is on a long journey, he nevertheless is to observe the LORD’s Passover. 11 On the fourteenth day of the second month at twilight, they are to eat it with unleavened bread and bitter herbs. 12 They are not to leave any of it to remain until morning nor are they to break any of its bones. They are to observe it according to all the statutes of the Passover.