Al-Ma'aarij • BN-TAFSEER-IBN-E-KASEER
﴿ إِنَّ عَذَابَ رَبِّهِمْ غَيْرُ مَأْمُونٍۢ ﴾
“for, behold, of their Sustainer's chastisement none may ever feel [wholly] secure;”
Please check ayah 70:35 for complete tafsir.