﴿ سَيَحْلِفُونَ بِٱللَّهِ لَكُمْ إِذَا ٱنقَلَبْتُمْ إِلَيْهِمْ لِتُعْرِضُوا۟ عَنْهُمْ ۖ فَأَعْرِضُوا۟ عَنْهُمْ ۖ إِنَّهُمْ رِجْسٌۭ ۖ وَمَأْوَىٰهُمْ جَهَنَّمُ جَزَآءًۢ بِمَا كَانُوا۟ يَكْسِبُونَ ﴾

“When you will have returned to them, (O believers,] they will swear to you by God, [repeating their excuses,] with a view to your letting them be. Let them be, then: behold, they are loathsome, and hell is their goal in recompense for what they were wont to do.”

They will swear to you by God when you turn back when you return to them from Tabūk that they had genuine excuses for staying behind so that you may leave them be refraining from reproaching them. So leave them be for they are an abomination filth on account of their inner vileness and their abode shall be Hell as requital for what they used to earn.