مسند اسحاق بن راهويه
Musnad Ishaq bin Rahwiya
كتاب العتق و المكاتبBook of Emancipation and Contracted Slaves
Virtue of a slave who worships Allah and obeys his master
Hadith 480
وَبِهَذَا الْإِسْنَادِ، عَنْ رَسُولِ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ قَالَ: ((إِنَّ الْمَمْلُوكَ إِذَا تُوُفِّيَ وَهُوَ يُحْسِنُ عِبَادَةَ رَبِّهِ وَيَنْصَحُ لِسَيِّدِهِ يُعْتِقُهُ اللَّهُ)).
With the same (previous) chain of narration, it is narrated from the Messenger of Allah, peace and blessings be upon him, that he said: "When a slave dies in such a state that he worships his Lord well and is also sincere towards his master, then Allah frees him (from Hell)."
