5. Ali ibn Ibrahim has narrated from Salih ibn al-Sindi from Ja’far ibn Bashir from Harun ibn Kharija that Abu Basir who has said the following
“Once I was with Abu Ja’far (a.s.) at a session, when a man asked him, ’Please speak to me about the wilaya (divine authority) of Ali (a.s), whether it is from Allah or from His Messenger?’ The Imam who seemed angry said: ’Fie upon you! The Messenger of Allah (s.w) was more fearing of Allah than that he should say what he was not commanded by Allah. Indeed, He decreed it (The divine authority of Ali (a.s.)) just as he decreed prayer, zakat, fasting and hajj to be obligatory.'"