Because prayer is a meeting between a person and his Lord, it is appropriate for him to prepare himself for that meeting, and to observe proper etiquette with Allah (may He be glorified and exalted). The Prophet (blessings and peace of Allah be upon him) taught his ummah a great deal about this etiquette, including what is mentioned in this hadith. When the Prophet (blessings and peace of Allah be upon him) heard the sound of people coming in – meaning the sound of their movements and words – whilst he was praying in congregation, he asked them, after he had finished his prayer, about the reason for this movement and noise. They said: We were rushing to catch up with the prayer. The Prophet (blessings and peace of Allah be upon him) told them not to rush like that, and advised them to behave in the calm and dignified manner that is required when coming to prayer; he instructed them to be quiet and unhurried, then whatever you catch up with of his prayer, pray it with him, and whatever you miss of his prayer, make it up after the imam says the salaam. Thus you will attain the reward of having prayed in congregation, so there is no need to rush. This hadith urges the Muslim to be calm and dignified when coming to prayer..