﴿ وَأَتَيْنَٰكَ بِٱلْحَقِّ وَإِنَّا لَصَٰدِقُونَ ﴾

“and we are bringing thee the certainty [of its fulfilment]: for, behold, we are speaking the truth indeed.”

(And bring thee the Truth) the news of the torment, (and lo! we are truth tellers) that a chastisement is coming down on them.