I draw members' attention to Marleau and Montpetit on page 493 under the heading “Decorum During the Taking of a Vote”. I will go to the second paragraph, which states:
Members must be in their assigned seat in the Chamber and have heard the motion read in order for their votes to be recorded. Any Member entering the Chamber while the question is being put or after it has been put cannot have his or her vote counted.
(The House divided on the motion, which was negatived on the following division:)