The Prophet (blessings and peace of Allah be upon him) urged the Muslims to pray in congregation, because of the great virtue that there is in doing so. He spoke of its virtue in many hadiths, including this hadith in which he (blessings and peace of Allah be upon him) explained the difference between the reward of praying in congregation and the reward of praying on one’s own; praying in congregation is twenty-seven times better than praying on one’s own, so the one who prays in congregation attains the reward of the one who prays on his own, plus a twenty-sevenfold reward. This meaning is indicated by what is mentioned in a report narrated by Muslim from Abu Hurayrah: “Prayer in congregation is equivalent to twenty-five prayers offered on one’s own.” Muslim also narrated: “One prayer offered with the imam is better than twenty-five prayers offered on one’s own.” With regard to the difference of numbers mentioned in the reports, twenty-seven and twenty-five, this difference may be due to differences in the situation of each individual worshipper and the way he performs the prayer. Thus one of them may attain a twenty-fivefold reward, and others may attain a twenty-sevenfold reward, depending on how well they pray, the extent to which they do the movements properly and show proper focus and humility (khushu‘), the number of people present in the congregation and their virtues, the virtue of the location, and other matters. The salaf or early generations (may Allah be pleased with them) did not stay away from prayer in congregation, and they were keen to do it. One of them – as is narrated in Sahih Muslim from Ibn Mas‘ud (may Allah be pleased with him) would be brought to attend the prayer in congregation leaning on two men, having to be supported by them because of his feebleness and weakness, because of what he knew of the virtue of praying in congregation and hoping to attain the reward thereof. This hadith urges the Muslim to pray in congregation and highlights the virtue of doing so..