The universality of the Prophet's Message, how He was supported in His Mission and Allah's Blessings to Mankind

Allah says:

وَلَوْ شِئْنَا لَبَعَثْنَا فِي كُلِّ قَرْيَةٍ نَذِيرًا ﴿٥١﴾

And had We willed, We would have raised a warner in every town.

`Calling them to Allah, but We have singled you out, O Muhammad, to be sent to all the people of earth, and We have commanded you to convey the Qur'an,'

لاٌّنذِرَكُمْ بِهِ وَمَن بَلَغَ

that I may therewith warn you and whomsoever it may reach. (6:19)

وَمَن يَكْفُرْ بِهِ مِنَ الاٌّحْزَابِ فَالنَّارُ مَوْعِدُهُ

but those of the sects that reject it, the Fire will be their promised meeting place. (11:17)

لِّتُنذِرَ أُمَّ الْقُرَى وَمَنْ حَوْلَهَا

that you may warn the Mother of the Towns and all around it. (42:7)

قُلْ يَأَيُّهَا النَّاسُ إِنِّى رَسُولُ اللَّهِ إِلَيْكُمْ جَمِيعًا

Say: "O mankind! Verily, I am sent to you all as the Messenger of Allah...'' (7:158)

In the Two Sahihs it is reported that the Prophet said:

بُعِثْتُ إِلَى الْأَحْمَرِ وَالْأَسْوَد

I have been sent to the red and the black.

And:

وَكَانَ النَّبِيُّ يُبْعَثُ إِلَى قَوْمِهِ خَاصَّةً، وَبُعِثْتُ إِلَى النَّاسِ عَامَّة

...A Prophet would be sent to his own people, but I have been sent to all of mankind.