Musnad Ahmad 33:575

Hassan narrated to us, Ibn Lahi'ah narrated to us, Abu al-Zubayr narrated to us, from Jabir, who said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) one day, and he looked toward Ash-Sham and said: "O Allah, turn their hearts [toward the truth]." And he looked toward Iraq and said the like of that. And he looked toward every horizon and did that. And he said: "O Allah, provide us from the fruits of the earth, and bless for us in our mudd and our sa'."