You were creating mischief in the days of ignorance (Jahiliya) too.
You were creating mischief in the days of ignorance (Jahiliya) too. And now that you have proffered Islam, your machinations are still intact.” Ali (a.s.) replied to Abu Sufyan in that manner because Abu Sufyan was from the Bani Umayyah and the Holy Prophet (S) had even cursed this tribe. In such circumstances, Ali (a.s.) could not tolerate any kind of pact with Abu Sufyan. Ali (a.s.) followed the Prophet in every matter. His aloofness from Abu Sufyan was justified.
If he had shown any inclination to Abu Sufyan’s offer, it would have been absolutely against the desire of the Prophet. It is well known that the Bani Umayyah were dead opposed to both, the religion of Allah and the Messenger of Allah (S). The Holy Prophet (S) had put this tribe in its place in ten years. Now this tribe had no satanic power remaining.
Thus, if Ali (a.s.) sought the co-operation of Abu Sufyan, he would have been the cause of Bani Umayyah’s revival just as the two Shaykhs (Abu Bakr and Umar) were. That is, Abu Sufyan was made partner in rulership in order to save the seat of Caliphate. The result was that Bani Umayyah regained its lost strength and in no time, it became the supreme ruler of the Islamic lands.
It is indeed astonishing that this act, committed by the first Caliphate was clearly opposed to the aims of the Messenger of Allah (S). The consequences of this single mistake are not hidden from the people who know. And what to say of the mischiefs created in Islam itself? Words cannot describe the havoc wreaked upon the family of the Prophet. Doubtlessly, if Ali (a.s.) had agreed to Abu Sufyan’s offer, the blame of all the disasters and the carnage of Karbala’ would have come on Ali (a.s.).
Thus, after getting this reply from Ali (a.s.), Abu Sufyan came to Abu Bakr and Umar and said: “At last you have achieved your aim, but we have no share in your success. I shall destroy your Caliphate in no time.” The two were much worried at this threat of Abu Sufyan. They knew that to destroy the Caliphate was not difficult for Abu Sufyan.
With all helplessness, they told Abu Sufyan: “You too become a partner in our success, what is the need to destroy the Caliphate?” Thus, it was agreed that Abu Sufyan would send his son, Yazeed Ibn Abu Sufyan to rule Syria. This son ruled Syria for four years and after his death, his younger brother inherited the rulership of Syria during Umar’s Caliphate. His late brother was not at all learned and thus his death was a boon to Bani Umayyah.