The Sharia of Moses in the TORA
Part 2 - The 365 Prohibitions of the Tora
323 - WORKING ON THE FIRST DAY OF PESACH
Exodus 12:16 -- “On the first day there shall be a holy convocation, and on the seventh day there shall be a holy convocation for you. No manner of work shall be done on them; but that which everyone must eat--that only may be prepared by you.”
By this prohibition, it is forbidden to do work on the first day of Passover.