The Wanderers frontman will not be punished after it was deemed there was no way of knowing if allegations from an opposing player were accurate
Santalab was the subject of a formal complaint from Abbas, who alleged his opponent racially or ethnically vilified him during a heated Sydney derby clash at ANZ Stadium on March 8.
The incident sparked a furious response from Iraqi Abbas, who had to be restrained and continued to be visibly affected during the remainder of the game, a 3-1 Sky Blues win in which he scored the third goal from the penalty spot.
Following two lengthy meetings of the committee, a verdict was released on Thursday.
"Having regard to the circumstances surrounding the incident particularly the undisputed high noise levels and in the absence of other eyewitness or corroborative evidence, it was possible that Ali Abbas may have misheard what was said by Brendon Santalab," the statement read.
"Therefore the committee was not satisfied to the necessary standard of proof that the offending words were used by Brendon Santalab and dismissed the matter."