i m a hanafi.now if i want to follow other madhab for sijdah sahu can i do that? because many times i forget to give sijdah after attahiyyatu and i recall it before or after salam.what should i do?as per i know there are sahih narrations followed by other madhab that we can give sijdah sahu before or after salam at the finishing part.and can we mix up madhab in this type of sohih narrations?or is it an ijma that one should follow a single madhab strictly for all small and big issues?