regret on the Day of Judgment

وَلَوْ تَرَىٰٓ إِذْ وُقِفُوا۟ عَلَى ٱلنَّارِ فَقَالُوا۟ يَـٰلَيْتَنَا نُرَدُّ وَلَا نُكَذِّبَ بِـَٔايَـٰتِ رَبِّنَا وَنَكُونَ مِنَ ٱلْمُؤْمِنِينَ

If you could but see when they are made to stand before the Fire and will say, "Oh, would that we could be returned [to life on earth] and not deny the signs of our Lord and be among the believers."

يَـٰوَيْلَتَىٰ لَيْتَنِى لَمْ أَتَّخِذْ فُلَانًا خَلِيلًا

Oh, woe to me! I wish I had not taken that one as a friend.

حَتَّىٰٓ إِذَا جَآءَنَا قَالَ يَـٰلَيْتَ بَيْنِى وَبَيْنَكَ بُعْدَ ٱلْمَشْرِقَيْنِ فَبِئْسَ ٱلْقَرِينُ

Until, when he comes to Us [at Judgement], he says [to his companion], "How I wish there was between me and you the distance between the east and west; and what a wretched companion."

وَكُنَّا نَخُوضُ مَعَ ٱلْخَآئِضِينَ

And we used to enter into vain discourse with those who engaged [in it],