Hisham bin Urwah narrates from his father (Urwah, may Allah have mercy on him), attributing it to the Prophet (peace and blessings be upon him), that he said: "Whoever revives barren land, it is his, and the one with an unjust root has no right."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب إحياء الموات / 11774