عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ إِذَا أَطَاعَ الْعَبْدُ رَبَّهُ وَسَيِّدَهُ فَلَهُ أَجْرَانِ قَالَ فَلَمَّا أُعْتِقَ أَبُو رَافِعٍ بَكَى فَقِيلَ لَهُ مَا يُبْكِيكَ قَالَ كَانَ لِي أَجْرَانِ فَذَهَبَ أَحَدُهُمَا
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him and his family) said: When a slave obeys both his Lord and his master, he receives a double reward. The narrator says: When Sayyiduna Abu Rafi’ (may Allah be pleased with him) was set free, he began to weep. When he was asked what was making him cry, he said: I used to have two rewards, and now one of them has ended.