Translation of the verse 13 from Surah Ad-Dukhan : Number of verses 59 - - page 496 - Part 25.
How can there be for them an admonition (at the time when the torment has reached them), when a Messenger explaining things clearly has already come to them.
How will there be for them a reminder [at that time]? And there had come to them a clear Messenger.
(44:13) But how will they take heed? Such are they that a Messenger *11 came to them clearly expounding the Truth,
*11) Rasul-i-mubin has two meanings: (1) His being a Messenger is quite evident from his character, his morals and his works; and (2) he has made every effort to make the truth plain and clear.