(28) باب الاِسْتِعَاذَةِ مِنْ شَرِّ الذَّكَرِ
It was narrated from Shutair bin Shakal bin Humaid, that his father said:
"I said: 'O Messenger of Allah, teach me a supplication from which I may benefit.' He said: 'Say: Allahumma 'afini min sharri sam'i, wa basari, wa lisani, wa qalbi, wa sharri mani (O Allah, protect me from the evil of my hearing, my seeing, my tongue and my heart, and the evil of my sperm.)" - Meaning his sexual organ.
Reference: Sunan an-Nasa'i 5484
In-book reference: Book 50, Hadith 57
English translation: Vol. 6, Book 50, Hadith 5486