question #1 Sahih al-Bukhari 2216, Book 34, Hadith 163 : What is the significance of trade and commerce in Islam as demonstrated by the actions of the Prophet?

We were with the Prophet (ﷺ) when a tall pagan with long matted unkempt hair came driving his sheep.
The Prophet (ﷺ) asked him, “Are those sheep for sale or for gifts?” The pagan replied, “They are for sale.”
The Prophet (ﷺ) bought one sheep from him.