Takhrij Hadith 1909: "Shall I not teach you…"

Shall I not teach you a supplication that you can make which, if you owed a debt as great as a mountain, Allah would pay it off for you? Say, O Muʿadh: “O Allah, Owner of sovereignty, You grant sovereignty to whom You will and take sovereignty away from whom You will. You honor whom You will and humble whom You will. In Your Hand is all good. Indeed, You are capable of all things. O Most Merciful of this world and the Hereafter and Most Compassionate toward them, You give them to whom You will and withhold them from whom You will. Have mercy on me with a mercy that makes me independent of the mercy of anyone besides You.”