Sahih Muslim , Hadith 1863

It has been reported on the authority of Mujashi' b. Mas'ud as-Sulami who said: I came to the Prophet 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 Allah and to follow the path of virtue.

حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ أَبُو جَعْفَرٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ زَكَرِيَّاءَ، عَنْ عَاصِمٍ الأَحْوَلِ، عَنْ أَبِي عُثْمَانَ النَّهْدِيِّ، حَدَّثَنِي مُجَاشِعُ بْنُ مَسْعُودٍ السُّلَمِيُّ، قَالَ أَتَيْتُ النَّبِيَّ صلى الله عليه وسلم أُبَايِعُهُ عَلَى الْهِجْرَةِ فَقَالَ ‏ "‏ إِنَّ الْهِجْرَةَ قَدْ مَضَتْ لأَهْلِهَا وَلَكِنْ عَلَى الإِسْلاَمِ وَالْجِهَادِ وَالْخَيْرِ ‏" ‏ ‏.‏

sunnah.com

It has been reported on the authority of Mujashi' b. Mas'ud who said: I brought my brother Abu Ma'bad to the Messenger of Allah (may peace he upon him) after the conquest of Mecca and said: Messenger of Allah, allow him to swear his pledge of migration at your hand. He said: The period of migration is over with those who had to do it (and now nobody can get this meritorious distinctions) I said: For what actions will you allow him to bind himself in oath? He said: (He can do so) for serving the cause of Islam, for fighting in the way of Allah and for fighting in the cause of virtue. Abd Uthman said: I met Abd Ma'bad and told him what I had heard from Mujashi'. He said: He has told the truth.

وَحَدَّثَنِي سُوَيْدُ بْنُ سَعِيدٍ، حَدَّثَنَا عَلِيُّ بْنُ مُسْهِرٍ، عَنْ عَاصِمٍ، عَنْ أَبِي عُثْمَانَ، قَالَ أَخْبَرَنِي مُجَاشِعُ بْنُ مَسْعُودٍ السُّلَمِيُّ، قَالَ جِئْتُ بِأَخِي أَبِي مَعْبَدٍ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم بَعْدَ الْفَتْحِ فَقُلْتُ يَا رَسُولَ اللَّهِ بَايِعْهُ عَلَى الْهِجْرَةِ ‏.‏ قَالَ ‏"‏ قَدْ مَضَتِ الْهِجْرَةُ بِأَهْلِهَا ‏"‏ ‏.‏ قُلْتُ فَبِأَىِّ شَىْءٍ تُبَايِعُهُ قَالَ ‏"‏ عَلَى الإِسْلاَمِ وَالْجِهَادِ وَالْخَيْرِ ‏"‏ ‏.‏ قَالَ أَبُو عُثْمَانَ فَلَقِيتُ أَبَا مَعْبَدٍ فَأَخْبَرْتُهُ بِقَوْلِ مُجَاشِعٍ فَقَالَ صَدَقَ ‏.‏

sunnah.com

Another version of the tradition transmitted on the authority of Asim has the same wording but does not mention the name of Abu Ma'bad.

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، عَنْ عَاصِمٍ، بِهَذَا الإِسْنَادِ قَالَ فَلَقِيتُ أَخَاهُ فَقَالَ صَدَقَ مُجَاشِعٌ ‏.‏ وَلَمْ يَذْكُرْ أَبَا مَعْبَدٍ ‏.‏

sunnah.com