اللَّهُمَّ تَقَبَّلْ مِنَّا إِنَّكَ أَنْتَ السَّمِيعُ الْعَلِيمُ وَتُبْ عَلَيْنَا إِنَّكَ أَنْتَ التَّوَّابُ الرَّحِيمُ
Allahumma taqabbal minna innaka Antas-Sami'ul-'Alim, wa tub 'alayna innaka Antat-Tawwabur-Rahim
O Allah, accept from us, for You are the All-Hearing, the All-Knowing. And turn to us in mercy, for You are the Acceptor of repentance, the Most Merciful.
This is adapted from the du'a of Ibrahim and Isma'il (AS) when building the Ka'bah. It is commonly recited after completing Taraweeh prayers in Ramadan, asking Allah to accept the worship just performed.
Related Du'as
اللَّهُمَّ بَلِّغْنَا رَمَضَانَ وَأَعِنَّا عَلَى صِيَامِهِ وَقِيَامِهِ وَتَقَبَّلْهُ مِنَّا
O Allah, let us reach Ramadan, help us to fast and pray in it, and accept it from us.
Hasanاللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ لَا إِلَٰهَ إِلَّا اللَّهُ وَاللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ وَلِلَّهِ الْحَمْدُ
Allah is the Greatest, Allah is the Greatest. There is no deity except Allah. And Allah is the Greatest, Allah is the Greatest, and to Allah belongs all praise.
Sahihاللَّهُمَّ بَلِّغْنَا لَيْلَةَ الْقَدْرِ وَاجْعَلْنَا فِيهَا مِنَ الْمَقْبُولِينَ وَلَا تَحْرِمْنَا خَيْرَهَا وَاكْتُبْ لَنَا فِيهَا الْعِتْقَ مِنَ النَّارِ
O Allah, let us reach Laylatul Qadr, make us among the accepted in it, do not deprive us of its goodness, and decree for us in it freedom from the Fire.
Atharذَهَبَ الظَّمَأُ وَابْتَلَّتِ الْعُرُوقُ وَثَبَتَ الْأَجْرُ إِنْ شَاءَ اللَّهُ
The thirst is gone, the veins are moistened, and the reward is confirmed, if Allah wills.
Hasan