Madam Speaker, I would like to thank the Conservative member for his question, which allows me to provide clarification.
He is correct. This information is not found verbatim in the Constitution. However, in any legislative forum like ours, conventions develop over time. If he rereads the speeches and discussions that have taken place—we can provide him with some—he will see that there is a convention under which this minimum is respected.
That being said, he is right about the written text. Years ago, the rule of fair play also existed but we do not invoke it today because it has been broken so often here in the House. We saw an example of this earlier when a member tried to prevent me from being asked a question.