29. Muhammad ibn Musa ibn al-Mutawakkil said: `Abd Allah ibn Ja`far al-Himyani said: Muhammad ibn al-Husayn said, on the authority of al-Hasan ibn Mahbub, on the authority of Najiyyah al-Qawwas, on the authority of `Ali ibn Yaaqtin that Abu al-Hasan al-Kadhim said: “Guide your friends to hold their tongues, abandon religious quarrel, and strive to serve Allah, the Mighty and High.”