None besides Allah can avert it.
no one besides Allah can prevent it from coming, nor does anyone know when it will come, except Him. The warner is eager to convey his knowledge of the imminence of a calamity, so that it does not befall those to whom he is a warner.
As He said;
إِنِّينَذِيرٌ لَّكُمْ بَيْنَ يَدَىْ عَذَابٍ شَدِيدٍ
He is only a warner to you in face of a severe torment. (34;46)
And in the Hadith;
أَنَا النَّذِيرُ الْعُرْيَان
I am the naked warner,
meaning, I was in such a hurry to warn against the evil I saw coming, that I did not wear anything. In this case, one rushes to warn his people in such haste that he will be naked.
This meaning befits the meaning of the Ayah,
أَزِفَتْ الاْزِفَةُ
(the Azifah draws near), in reference to the nearing Day of Resurrection. Allah said in the beginning of the Surah Al-Qamar;
اقْتَرَبَتِ السَّاعَةُ
The Hour has drawn near. (54;1)
Imam Ahmad recorded that Sahl bin Sa`d said that the Messenger of Allah said,
إِيَّاكُمْ وَمُحَقَّرَاتِ الذُّنُوبِ
فَإِنَّمَا مَثَلُ مُحَقَّرَاتِ الذُّنُوبِ كَمَثَلِ قَوْمٍ نَزَلُوا بِبَطْنِ وَادٍ فَجَاءَ ذَا بِعُودٍ وَجَاءَ ذَا بِعُودٍ حَتْى أَنْضَجُوا خُبْزَتَهُمْ وَإِنَّ مُحَقَّرَاتِ الذُّنُوبِ مَتَى يُوْخَذُ بِهَا صَاحِبُهَا تُهْلِكُه
Beware of small sins!
The example of the effect of small sin is that of people who settled near the bottom of a valley. One of them brought a piece of wood, and another brought another piece of wood, until they cooked their bread!
Verily, small sins will destroy its companion, if one is held accountable for them.
Allah the Exalted admonishes the idolators because they hear the Qur'an, yet they turn away from it in heedless play,
Allah said;
أَفَمِنْ هَذَا الْحَدِيثِ تَعْجَبُونَ