اَللّٰهُمَّ قِنِيْ عَذَابَكَ يَوْمَ تَبْعَثُ عِبَادَكَ ـ

Allaahumma qinii ‘adhaabaka yawma tab’athu ‘ibaadak. (Hafsah Sunan Abi Dawud #4388)

O Allah, save me from Your punishment on the day You raise Your servants to life again.

Prophet Muhammad (sallallahu alayhi wa sallem) used to say this du’aa after the salaat.

(Source: Khalid Baig’s translation and commentary of du’aa #97 in the Accepted Whispers: Munajat-e-Maqbul)