section 839(1)


839(1) Subject to subsection (1.1), an appeal to the court of appeal as defined in section 673 may, with leave of that court or a judge thereof, be taken on any ground that involves a question of law alone, against (a) a decision of a court in respect of an appeal under section 822; or (b) a decision of an appeal court under section 834, except where that court is the court of appeal.