question #1 Sahih al-Bukhari 2220, Book 34, Hadith 167 : How does embracing Islam affect the reward for good deeds performed before conversion?

Hakim bin Hizam said, “O Allah’s Messenger (ﷺ)! I used to do good deeds in the Pre-Islamic period of
Ignorance, e.g., keeping good relations with my Kith and kin, manumitting slaves and giving alms.
Shall I receive a reward for all that?” Allah’s Messenger (ﷺ) replied, “You embraced Islam with all the good
deeds which you did in the past.”