question #3 Sahih al-Bukhari 335, Book 7, Hadith 2 : What is the significance of the Prophet Muhammad (ﷺ) being sent to all mankind rather than a specific nation?

The Prophet (ﷺ) said, “I have been given five things which were not given to any one else before me.
-1. Allah made me victorious by awe, (by His frightening my enemies) for a distance of one month’s
journey.
-2. The earth has been made for me (and for my followers) a place for praying and a thing to perform
Tayammum, therefore anyone of my followers can pray wherever the time of a prayer is due.
-3. The booty has been made Halal (lawful) for me yet it was not lawful for anyone else before me.
-4. I have been given the right of intercession (on the Day of Resurrection).
-5. Every Prophet used to be sent to his nation only but I have been sent to all mankind.