لَا تُبْقِيْ وَلَا تَذَرُۚ ( المدثر: ٢٨ )
lā
لَا
Not
tub'qī
تُبْقِى
it lets remain
walā
وَلَا
and not
tadharu
تَذَرُ
it leaves
Laa tubqee wa laa tazar (al-Muddathir 74:28)
Sahih International:
It lets nothing remain and leaves nothing [unburned], (Al-Muddaththir [74] : 28)
1 Mufti Taqi Usmani
It neither spares (anything inside it from burning) nor leaves (any disbeliever outside).