Muhammad bin Ajlan al-Madni محمد بن عجلان المدني · The Book of Purification

"I am like a father teaching you. When any one of you goes to Al-Khala' (the toilet), let him not face toward the Qiblah nor turn his back toward it, and let him not clean himself with his right hand." And he used to tell them to use three stones, and he forbade using dung or old bones.

"The Messenger of Allah (ﷺ) performed Wudu', and he scooped up one handful (of water) and rinsed his mouth and nose. Then he scooped up another handful and washed his face. Then he scooped up another handful and washed his right hand, then another handful and washed his left hand. Then he wiped his head and his ears, the inside with his forefinger and the outside with his thumb. Then he scooped up a handful of water and washed his…