Shu'bah bin al-Hajjaj شعبة بن الحجاج · The Book on Purification

"When the Prophet entered the toilet he would say: 'O Allah Indeed I seek refuge in You.'" Shu'bah (one of the narrators) said: "Another time he said: 'I seek refuge in You from AI-Khubthi and al-Khablth.' Or: 'Al-Khubthi and Al-Khaba'ith.'"

"The Prophet forbade that a man should perform Wudu with the leftover (water) from a woman's purifcation." Or, he said: "from her drinking."

Allah's Messenger said: "There no Wudu except for a sound or a smell."

"The companions of Allah's Messenger would sleep, then stand to pray, They would not perform Wudu."