It is narrated from Wahb bin Kaysan that he said: When Ibn Zubair (may Allah be pleased with him) was given the pledge of allegiance, an Iraqi man wrote a letter to him: "Peace be upon you. I praise before you Allah, besides whom there is no deity. To proceed! Indeed, those who obey Allah and the people of goodness have a sign by which they are recognized. And those things are recognized among them: enjoining what is right, forbidding what is wrong, and actions of obedience to Allah. And know that the example of the Imam is like that of the marketplace. Whatever is in it, that is what will come to him. If the Imam is righteous, then the righteous people will come to him with their righteousness, and if the Imam is wicked, then the people of wickedness will come to him with their wickedness."