The Messenger of Allah (ﷺ) used to say in prayer:
اَللَّهُمَّ إِنِّي أَسْأَلُكَ الثَّبَاتَ فِي الْأَمْرِ وَالْعَزِيْمَةَ عَلَى الرُّشْدِ وَأَسْأَلُكَ شُكْرَ نِعْمَتِكَ وَحُسْنَ عِبَادَتِكَ وَأَسْأَلُكَ قَلْبًا سَلِيْمًا وَلِسَانًا صَادِقًا وَأَسْأَلُكَ مِنْ خَيْرِ مَا تَعْلَمُ وَأَعُوذُ بِكَ مِنْ شَرِّ مَا تَعْلَمُ وَأَسْتَغْفِرُكَ لِمَا تَعْلَمُ
Pronunciation
Allaahumma inni as'aluka ath-thabbaata fil-amri wal-'azimata 'alar-rushdi wa as'aluka shukra ni'matika wa ‘husna 'ibaadatika wa as'aluka qalban saliman wa lisaanan sadiqan wa as'aluka min khairi maa ta'lamu wa A‛oodhu bika min sharri maa ta'lamu wa astaghfiruka limaa ta'lamu
Meaning
O Allah, I ask You for steadfastness in all my affairs and determination in following the right path, I ask You to make me thankful for Your blessings and to make me worship You properly. I ask You for a sound heart and a truthful tongue. I ask You for the best of what You know and I seek refuge in You from the worst of what You know and I seek Your forgiveness for what You know.
Source: Sahih Li Ghairihi. Takhrij Mishkat: 915
Read the hadith
"وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي الرَّكْعَتَيْنِ الْأُولَيَيْنِ كَأَنَّهُ عَلَى الرَّضْفِ حَتَّى يَقُومَ. رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُدَ وَالنَّسَائِيُّ ‘
Abdallah b. Mas'ud said that in the first two rak'as the Prophet was as though he were on heated stones till he got up.* *A figurative phrase to express the shortening of the sitting during the tashahhud . Tirmidhi, Abu Dawud and Nasa’i transmitted it. [Sahih li Gaiihi (Albani). Takhrij Mishkat: 915]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset