question #2 Sahih Muslim 123a, Book 1, Hadith 230 : How does embracing Islam affect the virtues and good deeds done prior to conversion?

Do you think that there is any thing for me (of he reward with the Lord) for the deed of religious purification that I did in the state of ignorance? Upon this he (the Messenger of Allah) said to him: You accepted Islam with all the previous virtues that you practised.