10. Muḥammad ibn Ḥasan ibn Aḥmad ibn Walīd narrated to me from Muḥammad ibn Ḥasan Al-Saffār, from Aḥmad ibn Muḥammad ibn ‘Isā, from Ḥasan ibn ‘Ali ibn Faďďāl, from Marwān ibn Muslim, from Ismā’īl ibn Kuthayr, who said: I heard Abā ‘Abdillāh (Imam Sādiq عليه السلام) say: The killer of Ḥusain ibn ‘Ali عليه السلام was conceived illegitimately and the killer of Yaḥyā ibn Zakariyyā عليه السلام (also) was conceived illegitimately. The sky and the earth have never cried on anyone but them.