Narrated Ma'an ibn Yazid:

AbulJuwayriyyah al-Jarmi said: I found a red pitcher containing dinars in Byzantine territory during the reign of Mu'awiyah. A man from the Companions of the Prophet ﷺ belonging to Banu Sulaym was our ruler. He was called Ma'an ibn Yazid. I brought it to him. He apportioned it among the Muslims. He gave me the same portion which he gave to one of them. He then said: Had I not heard the Messenger of Allah ﷺ say: There is no reward except after taking the fifth (from the booty), I would have given you (the reward). He then presented his own share to me, but I refused.

حَدَّثَنَا أَبُو صَالِحٍ، مَحْبُوبُ بْنُ مُوسَى أَخْبَرَنَا أَبُو إِسْحَاقَ الْفَزَارِيُّ، عَنْ عَاصِمِ بْنِ كُلَيْبٍ، عَنْ أَبِي الْجُوَيْرِيَةِ الْجَرْمِيِّ، قَالَ أَصَبْتُ بِأَرْضِ الرُّومِ جَرَّةً حَمْرَاءَ فِيهَا دَنَانِيرُ فِي إِمْرَةِ مُعَاوِيَةَ وَعَلَيْنَا رَجُلٌ مِنْ أَصْحَابِ النَّبِيِّ ﷺ مِنْ بَنِي سُلَيْمٍ يُقَالُ لَهُ مَعْنُ بْنُ يَزِيدَ فَأَتَيْتُهُ بِهَا فَقَسَمَهَا بَيْنَ الْمُسْلِمِينَ وَأَعْطَانِي مِنْهَا مِثْلَ مَا أَعْطَى رَجُلاً مِنْهُمْ ثُمَّ قَالَ لَوْلاَ أَنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ " لاَ نَفْلَ إِلاَّ بَعْدَ الْخُمُسِ " . لأَعْطَيْتُكَ . ثُمَّ أَخَذَ يَعْرِضُ عَلَىَّ مِنْ نَصِيبِهِ فَأَبَيْتُ .