Arabic (Original)
حَدَّثَنَا سُفْيَانُ عَنِ ابْنِ عَجْلَانَ عَنْ سَعِيدٍ عَنْ أَبِي هُرَيْرَةَ الدَّوْسِيِّ قَالَ فَأَهْدَى لَهُ نَاقَةً يَعْنِي قَوْلَهُ قَالَ لَا أَتَّهِبُ إِلَّا مِنْ قُرَشِيٍّ أَوْ دَوْسِيٍّ أَوْ ثَقَفِيٍّ.
English Translation
The Prophet (peace be upon him) said: 'Shall I not inform you of that by which Allah erases sins and raises ranks? Performing ablution thoroughly despite discomfort, taking many steps to the mosque, and waiting for the next prayer after the prayer. That is the ribat (guarding the frontier), that is the ribat.'