A brilliant long, cross-field pass from Hany found El Shahat, who pushed the ball across the goalmouth for Kahraba to fire into the net from close range.
Sensing the title was slipping from their grasp, Wydad responded positively and Yahia Attiyat Allah struck the woodwork with a low shot midway through the second half.
El Motie saved superbly from Kahraba after great work by Tau as the Cairo Red Devils sought the three-goal advantage that would have virtually guaranteed them overall victory.
Zouhair el Moutaraji, whose wonder goal led to Wydad beating Ahly in the 2022 final, made little impact this time and was replaced by Bouhra on 82 minutes.
It proved a masterstroke by recently hired Belgian coach Sven Vandenbroeck as the substitute slammed a loose ball into the net after Ahly failed to clear a cross.