وَأَصْلِحْ لِي فِي ذُرِّيَّتِي إِنِّي تُبْتُ إِلَيْكَ وَإِنِّي مِنَ الْمُسْلِمِينَ
Wa aslih li fi dhurriyyati inni tubtu ilayka wa inni minal-Muslimin
And set right for me my offspring. Indeed, I have repented to You, and indeed I am of the Muslims.
"Aslih" — rectify, set right, fix. This du'a acknowledges that your children may have problems you cannot solve — behavioral issues, spiritual crises, worldly difficulties. You ask Allah to fix what is broken in your offspring. And the tie to repentance is deliberate: your own tawbah purifies the soil in which your family grows. A parent's spiritual state directly affects their children.
Related Du'as
رَبَّنَا لَا تُزِغْ قُلُوبَنَا بَعْدَ إِذْ هَدَيْتَنَا وَهَبْ لَنَا مِن لَّدُنكَ رَحْمَةً ۚ إِنَّكَ أَنتَ الْوَهَّابُ
Our Lord, do not let our hearts deviate after You have guided us, and grant us mercy from Yourself. Indeed, You are the Bestower.
Sahihرَبِّ لَا تَذَرْنِي فَرْدًا وَأَنْتَ خَيْرُ الْوَارِثِينَ
My Lord, do not leave me alone with no offspring, while You are the best of inheritors.
Sahihرَبِّ اجْعَلْنِي مُقِيمَ الصَّلَاةِ وَمِنْ ذُرِّيَّتِي ۚ رَبَّنَا وَتَقَبَّلْ دُعَاءِ
My Lord, make me an establisher of prayer, and from my descendants. Our Lord, accept my supplication.
Sahihرَبِّ اجْعَلْنِي مُقِيمَ الصَّلَاةِ وَمِن ذُرِّيَّتِي رَبَّنَا وَتَقَبَّلْ دُعَاءِ رَبَّنَا اغْفِرْ لِي وَلِوَالِدَيَّ وَلِلْمُؤْمِنِينَ يَوْمَ يَقُومُ الْحِسَابُ
My Lord, make me an establisher of prayer, and from my descendants. Our Lord, accept my supplication. Our Lord, forgive me and my parents and the believers on the Day the account is established.
Sahih