Qatadah (RA) said, the Prophet (ﷺ) said, the worst thief is the one who steals the prayer. The Companions said, how do you steal the prayer? The Prophet (ﷺ) said: He who does not complete his bowing and prostration.
Source: Sahih (Albani). Mishkat: 885
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset