Updated

A top Al Qaeda ideologue has promised revenge for the killing of militant leader Usama Bin Laden by U.S. forces in the first jihadist admission of his death.

The commentator, going by the online name "Assad al-Jihad2" posted Monday on extremist websites a long eulogy for bin Laden and promised to "avenge the killing of the Sheik of Islam."

He also announced that anyone thinking the jihad had ended just had to "wait a little bit."

Militant websites regularly post long interviews with al-Jihad2 on the protocols of waging holy war and he is often used to resolve questions of doctrine.

U.S. forces raided bin Laden's heavily guarded compound in a suburb of Pakistan's capital late Sunday, killing him, his son and several associates.