It is narrated from a person who was from the tribe of Banu Asad that he asked Sayyiduna Abu Ayyub Ansari (may Allah be pleased with him): "I perform prayer in my house, then I come to the mosque and find the Imam leading the prayer. Should I then pray again with the Imam?" Sayyiduna Abu Ayyub Ansari (may Allah be pleased with him) said: "Yes! Whoever does so will receive the reward of congregation, or a reward like that of congregation, or he will receive a portion of the reward of the army of Islam, meaning he will receive the reward of a warrior, or he will receive the reward of staying in Muzdalifah, or he will receive double reward—one for praying alone and the other for praying with the congregation."