And they said: Our hearts are concealed to what you are calling us, and there is a lid in our ears also, and there is a barrier in between you and us, then you do in your way, while we are doing in our ways.
It is mentioned in verses 17: 45-46 about the Arabic Quran reading Fujjar that when they are made to hear the Clear manifest reading Adhikr, Allah will put a barrier between them and those who do not believe in the Hereafter. The verses 6: 25 and 18: 57 also convey the same message. As mentioned in verse 83: 15, there will be an unseen barrier in the Hereafter between the Lord of the universe and the Fujjar, who don’t familiarize themselves with the Lord to mankind with the Three Time Knowledge Adhikr. See explanation 2: 165-167; 14: 9; 25: 29-30.