Playing, in addition, on the two inflectional terms 'adl (justice) and ma'rifa (knowledge), which are commonly known to grammarians, he made an extremely sublime pun that only a listener with advanced grammatical expertise, i.e al-Suwaydi, would grasp. He thus surreptitiously fulminated against the second caliph twisting the usual meanings of 'adl and ma'rifa and unequivocally declared Umar void of these two virtues without explicitly uttering it. He also carried out the prayer in the Shi'i way.[76][77][78]