Abu al-Zanad أبو الزناد · The Book of Purification

"Were it not that it would be too difficult for my Ummah, I would have commanded them to use the Siwak at (the time of) every Salah."

"If a dog drinks from the vessel of one of you, let him wash it seven times."

"When any one of you performs Wudu', let him put water in his nose then blow it out."

"Sometimes he performed Ghusl at the beginning of the night and sometimes he performed Ghusl at the end." I said: "Praise be to Allah Who has made the matter flexible."