اللَّهُمَّ ثَبِّتْ قَدَمَيَّ عَلَى الصِّرَاطِ يَوْمَ تَزِلُّ فِيهِ الْأَقْدَامُ
Allahumma thabbit qadamayya 'alas-sirati yawma tazillu fihil-aqdam
Ó Allah, mantém os meus pés firmes na Ponte (Sirat) no Dia em que os pés escorregarão.
While washing the feet during wudu
This dua asks for firmness when crossing the Sirat bridge on the Day of Judgment.