Al-Taubah
This is a declaration of complete vindication on the part of Allah
and His Messenger to the idolaters to whom you had announced a
commitment that Islam would triumph in Arabia.
So go about in the land for four months, and know that you cannot
frustrate the plan of Allah and that Allah will humiliate the
disbelievers.
And this is a proclamation from Allah and His Messenger to the
people on the day of the Greater Pilgrimage, that Allah is clear
of the idolaters, and so is His Messenger. So if you repent, it
will be better for you; but if you turn away, then know that you
cannot frustrate the plan of Allah. And give tidings of a painful
punishment to those who disbelieve,
Except those of the disbelievers with whom you have entered into a
treaty and who have not subsequently failed you in anything nor
aided anyone against you. So fulfil to these the treaty you have
made with them till their term. Surely, Allah loves those who are
righteous.
And when the forbidden months have passed, slay the idolaters
wherever you find them and take them captive, and beleaguer them,
and lie in wait for them at every place of ambush. But if they
repent and observe Prayer and pay the Zakat, then leave their way
free. Surely, Allah is Most Forgiving, Merciful.

(From The Holy Qu'ran)