Uqba ibn 'Amir al-Juhani passed by a man who looked like a Muslim who greeted him. 'Uqba answered him, saying, "And on you and the mercy of Allah and his blessings." His slave said to him, "He is a Christian." 'Uqba got up and followed him until he caught up to him. He said, "The mercy of Allah and His blessings are for the believers, but may Allah make your life long and give you much wealth and many children."