My friend went with his wife last month europe on holidays when he reached at Montreal airport instead of scan his pr card he scanned his passport because they both did not have arrive can custom stop both of them wife is Canadian citizen husband got pr Because he scanned passport they knew his history in Canada they asked him from where u coming why you traveling your home country passport he explained then once upon a time he was asylum seeker but he got married he withdraw his case so got his pr through family so he is free to use his home passport and travel where he wants then officer checked in his computer and he found my friend was speaking truth than he said sorry to him and told him I am sorry we mainly stop you because u did not have arrive can plus you scanned your passport next time if you have arrive can or you scan your pr card instead of passport no one will ever ask you any questions sorry for inconvenience we have checked you got pr through family so you free to fly even your home country because you not did not get your pr through protection person or asylum seeker .