אך ביום הראשון תשביתו שאור מבתיכם
שמות יב – טו
What
To eat Matza on the night of the 15th of Nissan, with a Korban Pesach or otherwise.
Type
Positive
When
Any time
Where
Any where
Who
Males and females.
Why
So we remember the miracles we saw in Egypt.
Additional details
In the 2nd & 3rd perek of Psachim
If you don't eat
He has neglected to perform the positive commandment of בערב תאכלו מצות. Bais Din may force him to fulfill it.