Quran 2:194 — The Heifer (Al-Baqarah)

During the Sacred Months, aggression may be met by an equivalent response. If they attack you, you may retaliate by inflicting an equitable retribution. You shall observe GOD and know that GOD is with the righteous.

[2:193] You may also fight them to eliminate oppression, and to worship GOD freely. If they refrain, you shall not aggress; aggression is permitted only against the aggressors.

[2:195] You shall spend in the cause of GOD; do not throw yourselves with your own hands into destruction. You shall be charitable; GOD loves the charitable.