6. Muhammad ibn al-Hassan and others have narrated from Sahl ibn Ziyad from ibn Mahbub from ibn Ribat from Yunus ibn ‘Ammar who has said the following: “I once asked abu ‘Abd Allah عليه السلام, about Wudu’ for Salah (prayer). He (the Imam) said, ‘It is (washing the face) once and (hands) once.’”