Al-Anfal 8:72 ان الذين امنوا وهاجروا وجاهدوا باموالهم وانفسهم في سبيل الله والذين اووا ونصروا اولايك بعضهم اولياء بعض والذين امنوا ولم يهاجروا ما لكم من ولايتهم من شيء حتى يهاجروا وان استنصروكم في الدين فعليكم النصر الا على قوم بينكم وبينهم ميثاق والله بما تعملون بصير ٧٢

Indeed, those who have believed and emigrated and fought with their wealth and lives in the cause of Allāh and those who gave shelter and aided - they are allies of one another. But those who believed and did not emigrate - for you there is no support of them until they emigrate. And if they seek help of you for the religion, then you must help, except against a people between yourselves and whom is a treaty. And Allāh is Seeing of what you do.