Al-Báqara 2:273 للفقراء الذين احصروا في سبيل الله لا يستطيعون ضربا في الارض يحسبهم الجاهل اغنياء من التعفف تعرفهم بسيماهم لا يسالون الناس الحافا وما تنفقوا من خير فان الله به عليم ٢٧٣

Those needy ones who are wholly wrapped up in the cause of Allah, and who are hindered from moving about the earth in search of their livelihood, especially deserve help. He who is unaware of their circumstances supposes them to be wealthy because of their dignified bearing, but you will know them by their countenance, although they do not go about begging of people with importunity. Whatever wealth you spend on helping them, Allah will know of it.¹