"And We will surely let them taste the nearer punishment," meaning the closest; that is: by the sword on the day of Badr, according to the interpretation of al-Hasan, "short of the greater punishment," the punishment of the Fire, "so that perhaps they," meaning so that perhaps those who remain...
﴿ولنذيقنهم من الْعَذَاب الْأَدْنَى﴾ الْأَقْرَبِ؛ يَعْنِي: بِالسَّيْفِ يَوْمَ بَدْرٍ؛ فِي تَفْسِيرِ الْحَسَنِ ﴿دُونَ الْعَذَابِ الْأَكْبَر﴾ عَذَاب النَّار ﴿لَعَلَّهُم﴾ لَعَلَّ مَنْ يَبْقَى