O Allah, whiten my face on the Day when faces will be whitened and faces will be — Wudu
اللَّهُمَّ بَيِّضْ وَجْهِي يَوْمَ تَبْيَضُّ وُجُوهٌ وَتَسْوَدُّ وُجُوهٌ
Transliteration: Allaahumma bayyid wajhee yawma tabyaddhu wujoohun wa taswaddu wujooh
Translation: O Allah, whiten my face on the Day when faces will be whitened and faces will be blackened. (During wudu)
Reference: Al-Bayhaqi