and in another place in the very same Book, Allah informs mankind that: "The nearest people to Abraham, are those who follow him and those who follow the Holy Prophet (s) and the true believers. Allah is the guardian of the true believers"
The following is a famous reply of Imam Ali (a) to the letter of Mu'awiya. It throws ample light on many phases of the history of Islam from the time of its dawn up to the time of Imam Ali (a).
Qur'an, 2:68