2. Muhammad ibn Yahya has narrated from Salmah ibn af-Khattab from Ali ibn Sayf ibn ‘Amirah from his father form ‘Umar ibn Hanzalah who has said the following: “Abu ‘Abd Allah عليه السلام, has said, ‘When the sun declines toward the west at noontime, it is time for al-Dhuhr Salah (prayer) except that there is Nafl (optional Salah (prayer) before al-Dhuhr Salah (prayer). It is up to you to spend a longer time for it or a short one.’”