Musannaf Ibn Abi Shaybah

Hazrat Abdur Rahman bin Ubaid, may Allah have mercy on him, narrates that his father, Hazrat Ubaid, may Allah have mercy on him, said: There were some people who used to take gifts and salaries and would pray with the people, but in secret, they would worship idols. These people were brought before Hazrat Ali, may Allah be pleased with him, bin Abi Talib, so he, may Allah be pleased with him, imprisoned them in the mosque or in jail. Then he said: O people! What is your opinion regarding those who take gifts and salaries with you and worship these idols? The people said: You, may Allah be pleased with him, should kill them. He, may Allah be pleased with him, said: No! Rather, I will deal with them in the same way as our ancestor Hazrat Ibrahim, peace be upon him, was dealt with. Thus, he, may Allah be pleased with him, burned them in the fire.