The Gold Adornments
حَتَّىٰٓ إِذَا جَآءَنَا قَالَ يَـٰلَيْتَ بَيْنِى وَبَيْنَكَ بُعْدَ ٱلْمَشْرِقَيْنِ فَبِئْسَ ٱلْقَرِينُ
Until, when he comes to Us [at Judgement], he says [to his companion], "Oh, I wish there was between me and you the distance between the east and west - how wretched a companion."
Nearby ayahs help place verse 43:38 in sequence and meaning.
وَمَن يَعْشُ عَن ذِكْرِ ٱلرَّحْمَـٰنِ نُقَيِّضْ لَهُۥ شَيْطَـٰنًا فَهُوَ لَهُۥ قَرِينٌ
And whoever is blinded from remembrance of the Most Merciful - We appoint for him a devil, and he is to him a companion.
وَإِنَّهُمْ لَيَصُدُّونَهُمْ عَنِ ٱلسَّبِيلِ وَيَحْسَبُونَ أَنَّهُم مُّهْتَدُونَ
And indeed, the devils avert them from the way [of guidance] while they think that they are [rightly] guided
وَلَن يَنفَعَكُمُ ٱلْيَوْمَ إِذ ظَّلَمْتُمْ أَنَّكُمْ فِى ٱلْعَذَابِ مُشْتَرِكُونَ
And never will it benefit you that Day, when you have wronged, that you are [all] sharing in the punishment.
أَفَأَنتَ تُسْمِعُ ٱلصُّمَّ أَوْ تَهْدِى ٱلْعُمْىَ وَمَن كَانَ فِى ضَلَـٰلٍ مُّبِينٍ
Then will you make the deaf hear, [O Muhammad], or guide the blind or he who is in clear error?