question #1 Sahih al-Bukhari 3862, Book 63, Hadith 87 : What challenges did early Muslims face before the conversion of influential figures like Umar?

I heard Sa`id bin Zaid bin `Amr bin Nufail saying in the mosque of Al-Kufa. “By Allah, I have seen
myself tied and forced by `Umar to leave Islam before `Umar himself embraced Islam. And if the
mountain of Uhud could move from its place for the evil which you people have done to `Uthman,
then it would have the right to move from its place.”