'Verily Allah, Blessed and most High, took Abraham as a slave before He took him as a prophet, and verily Allah took him as a prophet before He took him as an apostle, And verily Allah took him as an apostle before He took him as a friend. And verily Allah took him as a friend before He made him an Imam. And when all these ranks came together in him, He said, I am making you the Imam of mankind.?