(At-Thakhveer) 81 : 24
وَمَا هُوَ عَلَى الْغَيْبِ بِضَنِينٍ
And he does not withhold the unseen matters.
That means Messenger has been informing you of the unseen Knowledge revealed to him from Allah through Angel Jibreel without adding anything in It or reducing anything from It. Since Adhikr which is the Three Time Knowledge from the Three Time Knower Allah is codified today as a Book through the Three Time Knower mentioned in the verse 25: 59, the Fujjar-Kuffar-who do not testify It will be summoned in the Hellfire prone on their faces, such are in the worst place and are the most strayed as explained in verses 25: 33-34. See explanation 2: 2-3 and 53: 1-3.