This hadeeth comes under the following chapter: NO MIGRATION AFTER THE CONQUEST OF MECCA BUT ALLEGIANCE COULD BE SWORN (TO A RIGHTFUL LEADER) ON SERVING THE CAUSE OF ISLAM, ON FIGHTING IN THE WAY OF ALLAAH AND ON FOLLOWING THE PATH OF VIRTUE
It has been reported on the authority of Mujashi' b. Mas'ud as-Sulami who said: I came to the Prophet (sallAllaahu alayhi wa sallam) to offer him my pledge of migration. He said: The period of migration has expired (and those who wereto get the reward for this great act of devotion have got it). You may now give your pledge to serve the cause of Islam, to strive in the way of Allaah and to follow the path of virtue.