My Daughter was 12 years old and prayer was like heavy burden on her, So I told her to pray one day and I monitored her. She took the carpet and threw it on the ground. I asked her have you prayed - she said yes - Believe me, without feeling I slapped her face - I know I made a mistake. The situation has troubled me and I cried and I repent to God to forgive me the slap, the talk, the reminders did not benefit with my child.
One day A friend told me told me story. She went to one of her friends for a visit. Her friend was not that of a religious person, but when the Adhan prayer was called, her children rushed for prayers without reminders or quarrel. I said to her how does your children pray on themselves without quarrel or a reminder? !!! - She said I have nothing to tell you, but before I got married I supplicate this Dua and until today.
After she advised me the supplication Dua – I began to recite it in every Sujud in my prayers before Tasleem and anytime I could. My Sisters and Brothers since I began to recite the supplication Dua my daughter is now the first to prayer without reminders or quarrels. She got up in Fajr prayers without any alarms. And all her brothers are now eager in praying without any difficulties. Even my mother visited me once and went to sleep and I have to draw the attention to my daughter to wake us up.
I know You are now eager to know this Supplication Dua ..
The Supplication is in the Surae Ibrahim (14), ayah # 40 سُوۡرَةُ إبراهیم
And Supplication is...
رَبِّ ٱجۡعَلۡنِى مُقِيمَ ٱلصَّلَوٰةِ وَمِن ذُرِّيَّتِىۚ رَبَّنَا وَتَقَبَّلۡ دُعَآءِ (٤٠)
[14:40] O my Lord! make me one who establishes regular Prayer, and also (raise such) among my offspring O our Lord! and accept Thou my Prayer
"Rabbi-Ajal' ni muqeema salaati, wa min Dhurriyyati, rabbana wataqabbal duaa"
"Start today, do not wait until you get married and until you have kids - "prevention is better then cure