9. He said: Abul Hasan ‘Ali ibn Muhammad al-Katib reported to me from Abul Qasim Yahya ibn Zakariyya al-Katanji, who reported from Abu Hashim Dawood ibn al-Qasim al-Ja’fari, may Allah bless him with mercy, who said
I heard al-Ridha ‘Ali ibn Musa saying: Once Amirul Mu’mineen, peace be upon him, told Kumail ibn Ziyad during his discourse: "Your brother is your religion (his welfare is your religious responsibility) so be cautious of your religion in what you desire (for him)." And all praise for Allah, the Lord of the Universe. And may Allah bless our master Muhammad and his progeny.