O Prophet! strive hard against the unbelievers and the Hypocrites, and be firm against them. Their abode is Hell,- an evil refuge indeed. (9:73)

Therefore listen not to the Unbelievers, but strive against them with the utmost strenuousness, with the (Qur'an). (25:52)

O Prophet! Strive hard against the Unbelievers and the Hypocrites, and be firm against them. Their abode is Hell,- an evil refuge (indeed). (66:9)