I said: Messenger of Allah, teach me a supplication. He said: Say: "O Allah, I seek refuge in Thee from the evil of what I hear, from the evil of what I see, from the evil of what I speak, from the evil of what I think, and from the evil of my semen" (i.e. sexual passion). (Using translation from Abū Dāʾūd 1551)
قُلْتُ يَا رَسُولَ اللهِ عَلِّمْنِي دُعَاءً أَنْتَفِعُ بِهِ قَالَ قُلْ اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ سَمْعِي وَبَصَرِي وَقَلْبِيوَمَنِيِّي