He said that Mu’adh would pray the evening prayer along with the Prophet, then return to his people and lead them in the evening prayer, it being a supererogatory prayer for him…* transmitted it.
* The source is not mentioned. In al-Masabih, where the division of the chapters is into traditions which are sahih and traditions which are hasan, the collection of Tradition from which they are taken is not mentioned, but all those in section I are meant to be taken from Bukhari, or Muslim, or both. I have failed to find this one anywhere. The concordance does not seem to refer to it.
I was present with the Prophet at his pilgrimage and prayed the Morning Prayer along with him in the mosque of al-Khaif. When he finished his prayer and turned away there were two men at the back of the people who had not prayed along with him. He said, “Bring them to me,” and they were brought trembling with fear. He asked what had prevented them from praying along with him, and they replied, “Messenger of God, we had already prayed in our lodging.” He said, “Don’t do so. When you pray in your lodging and then come to a mosque where there is a congregation, you must pray along with them, and it will be a supererogatory prayer for you.
