Quran 9:45 — Ultimatum (Bara'ah)

The only people who wish to be excused are those who do not really believe in GOD and the Last Day. Their hearts are full of doubt, and their doubts cause them to waver.

[9:44] Those who truly believe in GOD and the Last Day do not ask your permission to evade the opportunity to strive with their money and their lives. GOD is fully aware of the righteous.

[9:46] Had they really wanted to mobilize, they would have prepared for it thoroughly. But GOD disliked their participation, so He discouraged them; they were told, "Stay behind with those who are staying behind."