Syrian opposition coalition leader : We reject ownership of any of the rebel factions . Al-Nusra Front denies it has merged with al Qaeda in Iraq , according to purported message . But al-Nusra Front leader says he pledges allegiance to al Qaeda chief Ayman al-Zawahiri . Abu Muhammad al-Joulani : I am a member of Jabhat Al Nusra, and we are fighting against all those who oppose us.
Syrian opposition coalition leader : We reject ownership of any of the rebel factions . Al-Nusra Front denies it has merged with al Qaeda in Iraq , according to purported message . But al-Nusra Front leader says he pledges allegiance to al Qaeda chief Ayman al-Zawahiri . Abu Muhammad al-Joulani : Syrian Islamic state can be built only with all rebel groups ' help .