Sahih Muslim
Sahih Muslim 123a
حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا ابْنُ وَهْبٍ، قَالَ أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ، أَنَّ حَكِيمَ بْنَ حِزَامٍ، أَخْبَرَهُ أَنَّهُ، قَالَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم أَرَأَيْتَ أُمُورًا كُنْتُ أَتَحَنَّثُ بِهَا فِي الْجَاهِلِيَّةِ هَلْ لِي فِيهَا مِنْ شَىْءٍ فَقَالَ لَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَسْلَمْتَ عَلَى مَا أَسْلَفْتَ مِنْ خَيْرٍ " . وَالتَّحَنُّثُ التَّعَبُّدُ .
Harmalah ibn Yahya narrated to me; Ibn Wahb informed us; he said: Yunus informed me, from Ibn Shihab, who said: Urwah ibn al-Zubayr informed me that Hakim ibn Hizam told him that he had said to the Messenger of Allah (peace and blessings be upon him): ‘What do you think of acts of devotion I used to perform in the Age of Ignorance—will I have any reward for them?’ The Messenger of Allah said: ‘You have embraced Islam with the good you did before.’ The narrator explains that tahannuth means worship.