Bilal said to Abu Bakr, "If you have bought me for yourself then keep me (for yourself), but if you have bought me for Allah's Sake, then leave me for Allah's Work."  

لأَبِي بَكْرٍ إِنْ كُنْتَ إِنَّمَا اشْتَرَيْتَنِي لِنَفْسِكَ فَأَمْسِكْنِي وَإِنْ كُنْتَ إِنَّمَا اشْتَرَيْتَنِي لِلَّهِ فَدَعْنِي وَعَمَلَ اللَّهِ  

[Machine] "Bilal, to Abu Bakr when the messenger of Allah ﷺ passed away, said: 'If you had bought me for yourself, then keep me, and if you had set me free for the sake of Allah, then leave me to work for Allah.'"  

بِلَالٌ لِأَبِي بَكْرٍ حِينَ تُوُفِّيَ رَسُولُ اللهِ ﷺ وَؓ «إِنْ كُنْتَ اشْتَرَيْتَنِي لِنَفْسِكَ فَأَمْسِكْنِي وَإِنْ أَعْتَقْتَنِي لِلَّهِ فَذَرْنِي أَعْمَلْ لِلَّهِ ﷻ»