Ad-Dukhan - 44:13

أَنَّى لَهُمُ الذِّكْرَى وَقَدْ جَاءهُمْ رَسُولٌ مُّبِينٌ
[44:13]
How shall they be reminded, and there came to them an Messenger making clear (the truth),
How shall the message be (effectual) for them, seeing that an Messenger explaining things clearly has (already) come to them,-
How can there be remembrance for them, when a messenger making plain (the Truth) had already come unto them,