اَللَّهُمَّ اغْفِرْ لِي وَارْحَمْنِي وَعَافِنِي وَاهْدِنِي وَارْزُقْنِي

Allahum-maghfir lee, warhamnee, wa 'aafinee, wahdinee, warzuqnee

O Allah! Pardon me, have mercy on me, guide me, and grant me sustenance. The Prophet (ﷺ) used to say this dua while sitting between two prostrations.

Reference: Sahih (Albani). Tirmidhi: 284, Hasan (Albani). Abu Dawud: 850