Exodus 12:47
The whole congregation of Israel is to observe it.
Exodus 12:6
It is to remain under your care until the fourteenth day of this month, and then the entire assembly of the congregation of Israel is to slaughter it at twilight.
Numbers 9:13
Now as to the person who is clean and isn't traveling, but fails to observe the Passover, that person is to be eliminated from his people, because he didn't bring an offering to the LORD at its appointed time. That person is to bear his sin.
Exodus 12:3
Tell the entire congregation of Israel, "On the tenth of this month they're each to take a lamb for themselves, according to their ancestors' households, one lamb for each household.