Musnad Ahmad 116:1

Waki’ narrated to us, he said: Sa’d ibn Aws narrated to me, from Bilal ibn Yahya—a sheikh of theirs—from Shutayr ibn Shakl, from his father, who said: I said, "O Messenger of Allah, teach me a supplication that I may benefit from." He said: "Say: O Allah, I seek refuge in You from the evil of my hearing, and my sight, and my heart, and my semen."