(One day) while the Commander of the Believers (a.s.) was delivering a sermon to the people he said, “Ask me before you lose me! I swear to Allāh that I will answer (your questions about) anything you might ask that has happened in the past or will happen in the future.” So Sa’d ibn Abī Waqqās got up and asked, “O Commander of the Believers! Tell me about the number of hairs that I have on my head and in my beard?” The Commander of the Believers (a.s.) replied, “I swear to Allāh that my love, the Messenger of Allāh (s.a.a.w.), informed me that you would be asking me this question. There is a Shayťān rooted in every strand of hair on your head and in your beard and there is a baby sheep in your house who will kill my son, Ḥusain (a.s.).” (‘Abd Al-Samīn/Asbagh added), “’Umar ibn Sa’d (the killer of Imam Ḥusain (a.s.)) was a child then and he was playing in front of his father (Sa’d ibn Abī Waqqās).”