Quran (2:191-193) – “And kill them wherever you find them”
Quran (4:76) – “Those who believe fight in the cause of Allah…”
Quran (8:12) – “I will cast terror into the hearts of those who disbelieve. Therefore strike off their heads and strike off every fingertip of them”
Quran (61:4) – “Surely Allah loves those who fight in His way”
Bukhari (52:177) – Allah’s Apostle said, “The Hour will not be established until you fight with the Jews, and the stone behind which a Jew will be hiding will say. “O Muslim! There is a Jew hiding behind me, so kill him.”
Bukhari (52:65) – The Prophet said, ‘He who fights that Allah’s Word, Islam, should be superior, fights in Allah’s Cause.
Bukhari (52:220) – Allah’s Apostle said… ‘I have been made victorious with terror’
Abu Dawud (14:2526) – The Prophet (peace_be_upon_him) said: Three things are the roots of faith: to refrain from (killing) a person who utters, “There is no god but Allah” and not to declare him unbeliever whatever sin he commits, and not to excommunicate him from Islam for his any action; and jihad will be performed continuously.
Muslim (1:33) – the Messenger of Allah said: I have been commanded to fight against people till they testify that there is no god but Allah, that Muhammad is the messenger of Allah.
Bukhari (8:387) – Allah’s Apostle said, “I have been ordered to fight the people till they say: ‘None has the right to be worshipped but Allah’. And if they say so, pray like our prayers, face our Qibla and slaughter as we slaughter, then their blood and property will be sacred to us and we will not interfere with them except legally.”
Muslim (1:149) – “Abu Dharr reported: I said: Messenger of Allah, which of the deeds is the best? He (the Holy Prophet) replied: Belief in Allah and Jihad in His cause…”
From National Review