Wazifa for Respectful children

رَبِّ إِنِّي نَذَرْتُ لَكَ مَا فِي بَطْنِي مُحَرَّرًا فَتَقَبَّلْ مِنِّي ۖ إِنَّكَ أَنْتَ السَّمِيعُ الْعَلِيمُ

Translation:

Allah heard when the wife of Imran said, "O my 

Rabb! I dedicate to Your service what is in my womb.

Please accept it from me. You alone hear all and 

know all."

Time: 

After Namaz-e-Tahajjud 101 times.