The Umayyad garrison commander , Ibn al - Mughira , had , in a state of panic , initiated a series of indiscriminate massacres in a pre-emptive effort to quell an uprising .
The Umayyad garrison commander , Ibn al - Mughira , ended up provoking that uprising himself .
The Umayyad garrison commander , Ibn al - Mughira , had , in a state of panic , initiated a series of indiscriminate massacres in a pre-emptive effort to quell an uprising , and ended up provoking that uprising himself .