For it is said, "You shall strengthen the stranger and the dweller in your midst and live with him," that is to say, strengthen him until he needs no longer fall upon the mercy of the community or be in need.

Book 7 (Sefer Zera'im "Seeds"), Treatise 2 (Mattenot Aniyiim "Laws of obligatory gifts to the poor"), Chapter (Perek) 10, Halacha 7 (Translated by Jonathan J. Baker.) - Mishneh Torah (c. 1180)