وَعَن أبي أَيُّوب سَمِعَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «سَتُفْتَحُ عَلَيْكُمُ الْأَمْصَارُ وَسَتَكُونُ جُنُودٌ مُجَنَّدَةٌ يُقْطَعُ عَلَيْكُمْ فِيهَا بُعُوثٌ فَيَكْرَهُ الرَّجُلُ الْبَعْثَ فَيَتَخَلَّصُ مَنْ قَوْمِهِ ثُمَّ يَتَصَفَّحُ الْقَبَائِلَ يَعْرِضُ نَفْسَهُ عَلَيْهِمْ مَنْ أَكْفِيهِ بَعْثَ كَذَا أَلَا وَذَلِكَ الْأَجِيرُ إِلَى آخِرِ قَطْرَةٍ مِنْ دَمِهِ» . رَوَاهُ أَبُو دَاوُد

Abu Ayyub told that he heard the Prophet say, “Capitals will be conquered at your hands and you will have to raise companies in large armies. A man will be unwilling to join a company, so he will escape from his people and go round the tribes offering himself to them, seeking someone whose place he may take in such and such an expedition.* That man is a hireling to the last drop of his blood.” * This is the type of person who dislikes being sent on a warlike expedition, but who is quite willing to take someone else’s place if he is paid for it. Abu Dawud transmitted it.