The Vaile valley is for every slandering backbiter.
Every individual is born in the nature which is Islam, as told in verse 30:30. It is the duty of parents to teach their children Adhikr—the Ticket to Paradise—before they attain 15 years of age. When one leads a life here, testifying to Adhikr, which is the character of the Creator, only then does he or she bear the representation of the Creator. Those who live here, seeing the Lord from Adhikr, will not say any defaming or backbiting word about others. They are living here approving verse 76:3, which says that the Lord Himself has given everyone the freedom to be grateful or ungrateful. See explanation 10:100 and 68:4.
Through verses 9:73 and 66:9, the believer is commanded to do Jihad with Adhikr against the Fujjar, including the hypocrites and their followers whose ledger is in Sijjeen of the Hell, as told in verse 83:7. So, as part of this, the believer is commanded to say to the hypocrites who have no soul words that will irritate them and penetrate their innermost, as explained in verse 4:63. See explanation 22:78; 33:60–61; and 49:11–12.