Converting to Islam does not erase the reward for any of the good done before Islam

I asked the Messenger of Allah ﷺ, "Before embracing Islam I used to do good deeds like giving in charity, freeing slaves, and the keeping of good relations with kith and kin. Shall I be rewarded for those deeds?" The Prophet ﷺ replied, "You became Muslim ˹along˺ with ˹the rewards for˺ all those good deeds ˹you have done in the past and without carrying the sin of any of the bad deeds of the past˺."  

قُلْتُ يَا رَسُولَ اللَّهِ، أَرَأَيْتَ أَشْيَاءَ كُنْتُ أَتَحَنَّثُ بِهَا فِي الْجَاهِلِيَّةِ مِنْ صَدَقَةٍ أَوْ عَتَاقَةٍ وَصِلَةِ رَحِمٍ فَهَلْ فِيهَا مِنْ أَجْرٍ؟ فَقَالَ النَّبِيُّ ﷺ: «أَسْلَمْتَ عَلَى مَا سَلَفَ مِنْ خَيْرٍ.»  

I said: Messenger of Allah, I did so some of the deeds in the state of ignorance. (One of the transmitters Hisham b. Urwa explained them as acts of piety. Upon this the Messenger, of Allah remarked: You have embraced Islam with all the previous acts of virtue. I said: By God, I would leave nothing undone in Islam the like of which I did in the state of ignorance.  

قُلْتُ يَا رَسُولَ اللَّهِ أَشْيَاءَ كُنْتُ أَفْعَلُهَا فِي الْجَاهِلِيَّةِ قَالَ هِشَامٌ يَعْنِي أَتَبَرَّرُ بِهَا فَقَالَ رَسُولُ اللَّهِ ﷺ أَسْلَمْتَ عَلَى مَا أَسْلَفْتَ لَكَ مِنَ الْخَيْرِ قُلْتُ فَوَاللَّهِ لاَ أَدَعُ شَيْئًا صَنَعْتُهُ فِي الْجَاهِلِيَّةِ إِلاَّ فَعَلْتُ فِي الإِسْلاَمِ مِثْلَهُ  

[Machine] He informed me that the Prophet (peace and blessings be upon him) said: I said, "O Messenger of Allah, what do you think of things that I used to do in the pre-Islamic era?" He said, "You have embraced Islam for what you have done before, and repentance is the act of worship."  

أَخْبَرَهُ قَالَ قُلْتُ يَا رَسُولَ اللهِ أَرَأَيْتَ أُمُورًا كُنْتُ أَتَحَنَّثُ بِهَا فِي الْجَاهِلِيَّةِ فَقَالَ أَسْلَمْتَ عَلَى مَا أَسْلَفْتَ وَالتَّحَنُّثُ التَّعَبُّدُ  

[Machine] "To the Messenger of Allah, have you seen something that I used to do during the time of ignorance and want to be rewarded for it? The Messenger of Allah replied, "You have embraced Islam, and you will be rewarded for what you have done before." Ibn Al-Dhahabi remained silent about it in his summary."  

لِرَسُولِ اللَّهِ ﷺ أَرَأَيْتَ شَيْئًا كُنْتُ أَصْنَعُهُ فِي الْجَاهِلِيَّةِ أَتَحَنَّثُ بِهِ هَلْ لِي فِيهِ مِنْ أَجْرٍ؟ فَقَالَ رَسُولُ اللَّهِ ﷺ «أَسْلَمْتَ عَلَى مَا سَلَفَ لَكَ مِنْ أَجْرٍ» سكت عنه الذهبي في التلخيص  

[Machine] I asked, "O Messenger of Allah, what do you think about the things I used to do during the time of ignorance (before Islam)? Can I justify them?" The Messenger of Allah ﷺ said, "You have embraced Islam and all the previous good deeds (before Islam) count." Hisham said, "He (the Messenger of Allah) used to free slaves even during the time of ignorance."  

قُلْتُ يَا رَسُولَ اللهِ أَرَأَيْتَ أَشْيَاءَ كُنْتُ أَصْنَعُهَا فِي الْجَاهِلِيَّةِ أَتَبَرَّرُ بِهَا؟ فَقَالَ رَسُولُ اللهِ ﷺ «أَسْلَمْتَ عَلَى مَا سَلَفَ مِنْ خَيْرٍ» قَالَ هِشَامٌ «وَكَانَ أَعْتَقَ فِي الْجَاهِلِيَّةِ»  

[Machine] I said, "O Messenger of Allah, what do you think about matters in which I used to engage in during the pre-Islamic period, such as being kind to relatives and maintaining family ties? Will I be rewarded for them?" The Prophet ﷺ replied, "You have embraced Islam with all the good deeds you have done before."  

قُلْتُ يَا رَسُولَ اللهِ أَرَأَيْتَ أُمُورًا كُنْتُ أَتَحَنَّثُ فِيهَا فِي الْجَاهِلِيَّةِ مِنْ عَتَاقَةٍ وَصِلَةِ رَحِمٍ هَلْ لِي فِيهَا مِنْ أَجْرٍ؟ فَقَالَ النَّبِيُّ ﷺ «أَسْلَمْتَ عَلَى مَا سَلَفَ لَكَ مِنْ خَيْرٍ»