Sura al-Tawbah 9:66

لَا تَعْتَذِرُوا۟ قَدْ كَفَرْتُم بَعْدَ إِيمَٰنِكُمْ إِن نَّعْفُ عَن طَآئِفَةٍ مِّنكُمْ نُعَذِّبْ طَآئِفَةًۢ بِأَنَّهُمْ كَانُوا۟ مُجْرِمِينَ

lā taʿtadhirū qad kafartum baʿda īmānikum in nnaʿfu ʿan ṭāʾifatin minkum nuʿadhdhib ṭāʾifatan bi-annahum kānū mujrimīna

Make ye no excuses: ye have rejected Faith after ye had accepted it. If We pardon some of you, We will punish others amongst you, for that they are in sin.

Sura al-Tawbah 9:94

يَعْتَذِرُونَ إِلَيْكُمْ إِذَا رَجَعْتُمْ إِلَيْهِمْ قُل لَّا تَعْتَذِرُوا۟ لَن نُّؤْمِنَ لَكُمْ قَدْ نَبَّأَنَا ٱللَّـهُ مِنْ أَخْبَارِكُمْ وَسَيَرَى ٱللَّـهُ عَمَلَكُمْ وَرَسُولُهُۥ ثُمَّ تُرَدُّونَ إِلَىٰ عَٰلِمِ ٱلْغَيْبِ وَٱلشَّهَٰدَةِ فَيُنَبِّئُكُم بِمَا كُنتُمْ تَعْمَلُونَ

yaʿtadhirūna ilaykum idhā rajaʿtum ilayhim qul lā taʿtadhirū lan nuʾmina la-kum qad nabbaʾanā allāhu min akhbārikum wa-sayara allāhu ʿamalakum wa-rasūluhu thumma turaddūna ilā ʿālimi l-ghaybi wa-l-shahādati fa-yunabbiʾukum bi-mā kuntum taʿmalūna

They will present their excuses to you when ye return to them. Say thou: "Present no excuses: we shall not believe you: Allah hath already informed us of the true state of matters concerning you: It is your actions that Allah and His Messenger will observe: in the end will ye be brought back to Him Who knoweth what is hidden and what is open: then will He show you the truth of all that ye did."

Sura al-Taḥrīm 66:7

يَٰٓأَيُّهَا ٱلَّذِينَ كَفَرُوا۟ لَا تَعْتَذِرُوا۟ ٱلْيَوْمَ إِنَّمَا تُجْزَوْنَ مَا كُنتُمْ تَعْمَلُونَ

yā-ayyuhā lladhīna kafarū lā taʿtadhirū l-yawma innamā tujzawna mā kuntum taʿmalūna

(They will say), "O ye Unbelievers! Make no excuses this Day! Ye are being but requited for all that ye did!"

Sura al-Mursalāt 77:36

وَلَا يُؤْذَنُ لَهُمْ فَيَعْتَذِرُونَ

wa-lā yuʾdhanu lahum fa-yaʿtadhirūna

Nor will it be open to them to put forth pleas.