But they denied Our Ayat Kidhdhaba.meaning, they used to deny the evidences of Allah and His proofs for His creation, which He revealed to His Messengers. So they met these proofs with rejection and abstinence.His statement, كِذَّاباً (Kidhdhaba) it means rejection, and it is considered a verbal noun that does not come from a verb.Allah said;وَكُلَّ شَيْءٍ أَحْصَيْنَاهُ كِتَابًا