When the Apostle of Allaah (sal Allahu alayhi wa sallam) entered the toilet, he used to say (before entering): "O Allaah, I seek refuge in Thee." This is according to the version of Hammad. 'Abd al-Warith has another version :"I seek refuge in Allaah from male and female devils."
Sunan Abi Dawud Book 1, Hadith 4
← Previous Hadith When Abdullah ibn Abbas came to Basrah, people narrated to him traditions from AbuMusa. Therefore Ibn Abbas wrote to him asking him about certain things. In reply AbuMusa wrote to him saying: One day I was in the company of the Messenger of Allah (ﷺ). He wanted to urinate. Then he came to a soft ground at the foot of a wall and urinated. He (the Prophet) then said: If any of you wants to urinate, he should look for a place (like this) for his urination.

Sunan Abi Dawud Book 1, Hadith 3 Next Hadith → " O Allaah, I seek refuge in Thee."

Shu'bah said: Anas sometimes reported the words: "I take refuge in Allah."

Sunan Abi Dawud Book 1, Hadith 5