Quran 9:96 — Ultimatum (Bara'ah)

They swear to you, that you may pardon them. Even if you pardon them, GOD does not pardon such wicked people.

[9:95] They will swear by GOD to you, when you return to them, that you may disregard them. Do disregard them. They are polluted, and their destiny is Hell, as a requital for the sins they have earned.

[9:97] The Arabs are the worst in disbelief and hypocrisy, and the most likely to ignore the laws that GOD has revealed to His messenger. GOD is Omniscient, Most Wise.