رَبَّنَا تَقَبَّلْ مِنَّآ إِنَّكَ أَنتَ السَّمِيعُ الْعَلِيمُ
"Our Lord! Accept from us. Verily, You are the Hearer, the Knower.'' [Surah Al-Baqara: 127]
وَتُبْ عَلَيْنَآ إِنَّكَ أَنتَ التَّوَّابُ الرَّحِيمُ
"And accept our repentance. Truly, You are the One Who accepts repentance, the Most Merciful." [Surah Al-Bqara: 128]
This was the dua'h of Prophet Ibraheem and Prophet Ismaeel Alaihumassalam when they were raising the foundations of Ka'bah in Makkah. When we perform a good deed for the sake of Allah SWT alone, we should always make dua'h to Allah to accept it from us with humility, as He is The All-Hearer, and The All-Knower. He is The Most Merciful, and the One who seeks repentence, sho we should constantly ask for repentence.