How to make your children pray on their own

HERE'S A NARRATIVE FROM A SISTER

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 if she 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 make a difference to my child.
One day A friend told me a story. She went to one of her friends for a visit. Her friend was not very religious, 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, before I got married I used to pray this Dua and stil pray it today.
After she told me the Du'a, I began to recite it in every Sujud in my prayers and anytime I could. Since I began to recite the Du'a my daughter is now the first to prayer without reminders or quarrels. She got up in Fajr prayer (subh) without any alarms. And all her brothers are now eager in praying without any difficulties.
I know You are now eager to know this Supplication Du'a..
The Supplication is in Surah Ibrahim 14:40.
And the Supplication is...
( رَبِّ ٱجۡعَلۡنِى مُقِيمَ ٱلصَّلَوٰةِ وَمِن ذُرِّيَّتِى‌ۚ رَبَّنَا وَتَقَبَّلۡ دُعَآءِ (٤٠
"Rabbi-Ajal'ni muqeema salaati, wa min Dhurriyyati, rabbana wataqabbal duaa"
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.
Ameen..
Start today do not wait until you get married and until you have kids, prevention is better than cure.
For those who are already married, children learn fast by imitating their parents. So as a father or mother the moment it's time for prayers, start performing ablution and rush to Masjid in sha Allah our children will do the same.
Don't forget to recite this Du'a as well;
رَبِّ هَبْ لِي مِنْ لَدُنْكَ ذُرِّيَّةً طَيِّبَةً إِنَّكَ سَمِيعُ الدُّعَاءِ
May Allah (SWT) continue to bless us with pious children and abundance lawful means to manage all their demands.
Amin