Abu al-‘Abbās ‘Abdu'llāh ibn Muhammad al-Saffāḥ, or Abul `Abbas as-Saffaḥ was the first caliph of the Abbasid caliphate, one of the longest and most important caliphates in Islamic history.
Abū'l ‘Abbās' laqab or caliphal title was "As-Saffāḥ" , meaning "the Blood-Shedder" for his ruthless tactics and perhaps also to instill fear in his enemies.
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“It is rare that bounty is given unasked but a just claim is destroyed thereby.”
History of the Caliphs, p. 263
