It is narrated from Hazrat Abu Saeed Khudri (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) saw that some of the companions were staying behind, so the Prophet (peace and blessings be upon him) said: "Move forward and follow me in prayer, those behind you will follow your lead, for people will continue to stay behind until Allah will put them at the back on the Day of Resurrection."