It is narrated from Hazrat Mihjan bin Abi Mihjan that he was sitting with the Messenger of Allah, peace and blessings be upon him, when the call to prayer was given. The Messenger of Allah, peace and blessings be upon him, stood up, performed the prayer, and returned to find Mihjan still sitting there. The Messenger of Allah, peace and blessings be upon him, said to him: "Why did you not pray with the people? Are you not a Muslim?" Mihjan replied, "O Messenger of Allah, peace and blessings be upon him! Of course I am, but I had already performed the prayer at home." Then the Messenger of Allah, peace and blessings be upon him, said: "When you come to the mosque, pray with the people, even if you have already performed the prayer before."