Al-Qassam justified violence on religious grounds . After the 1929 Hebron massacre , he intensified his anti-Zionist and anti-British agitation and obtained a fatwa from Sheikh Badr al-Din al-Taji al-Hasani , the Mufti of Damascus , authorizing the armed resistance against the British and the Jews
1929 Hebron massacre
1929 Hebron massacre
Black Hand (Mandatory Palestine)