لَيْسَ لِوَقْعَتِهَا كَاذِبَةٌ
Laysa liwaqAAatih a k ath iba tun there will be nought that could give the lie to its having come to pass,
 - Mohammad Asad
- no one will be able to deny its coming to pass
 - Muhammad Farooq-i-Azam Malik
then no one can deny it has come.
 - Mustafa Khattab
There is no denying that it will befall
 - Marmaduke Pickthall
Then will no (soul) entertain falsehood concerning its coming.
 - Abdullah Yusuf Ali