<sod >People file out of the mosque after the bomb attack at the al-Imam al-Sadiq mosque And though no group has yet claimed responsibility for the attack, another expert â Quilliamâs Charlie Winter â suggested that Isis supporters on Twitter were âgetting very animatedâ over the reports.< eod>< sod > People file out of the mosque after the bomb attack at the al-Imam al-Sadiq mosque The statement identified the bomber as Abu Suleiman al-Muwahed and said the target was a "temple of the rejectionists" - a term used by Isis to refer to Shia Muslims.< eod>