It has been reported by Kulaini on the authority of Hazrat Imam Jafar Sadiq (a.s.) that a case was decided by Hazrat Ali (k.u.w) in such a way that it was never decided before and that it was the first case after the demise of the Holy Prophet(S.A.).
“During the caliphate of Hazrat Abu Bakr a man was found drunk and brought before the Caliph. The Caliph asked him as to whether he had drunk wine. In reply the man admitted to have drunk.
The Caliph asked him: “Why did you drink when it has been prohibited in Islam?”
The man replied: “I am residing in the neighborhood of some people who are habitual drinkers. Although I am a Muslim, I have never heard that wine has been prohibited in Islam.”
Hearing this Hazrat Abu Bakr looked at Hazrat Umar with a question mark in his eyes. Hazrat Umar said: “This is just one of the cases that no one else than Ali (a.s.) could decide.”
When the case was referred to Hazrat Ali (a.s.), he sent the man round in the city with some persons to ask the people as to whether anyone had recited to him the verse of the holy Quran whereby wine was totally prohibited. And when it was proved that none had done so, the man was released with a warning never to drink in future.
(Also carried by Nasikhut Tawarikh, vol. 2, p. 731; Buharij, vo1. 9, p.483; Manaqib, vol. 2, p.178)