Surah At-Tur 52:46

يَوْمَ لَا يُغْنِى عَنْهُمْ كَيْدُهُمْ شَيْـًٔا وَلَا هُمْ يُنصَرُونَ

The Day their plan will not avail them at all, nor will they be helped.

Translation: Saheeh International

Tafsir

the day when their guile will avail them nothing yawma lā yughnī is a substitution for yawmahumu ‘that day of theirs’ and they will not be helped they will not be protected from the chastisement in the Hereafter.

Excerpt from Tafsir al-Jalalayn, commentary on 52:46, via Quran.com. The reader has the full commentary and 9 more tafsirs.