Messenger of Allah said: "Whoever prays twelve Rak'ah of Ad-Duha, Allah will build a castle made of gold for him in Paradise."  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ صَلَّى الضُّحَى ثِنْتَىْ عَشْرَةَ رَكْعَةً بَنَى اللَّهُ لَهُ قَصْرًا مِنْ ذَهَبٍ فِي الْجَنَّةِ قَالَ وَفِي الْبَابِ عَنْ أُمِّ هَانِئٍ وَأَبِي هُرَيْرَةَ وَنُعَيْمِ بْنِ هَمَّارٍ وَأَبِي ذَرٍّ وَعَائِشَةَ وَأَبِي أُمَامَةَ وَعُتْبَةَ بْنِ عَبْدٍ السُّلَمِيِّ وَابْنِ أَبِي أَوْفَى وَأَبِي سَعِيدٍ وَزَيْدِ بْنِ أَرْقَمَ وَابْنِ عَبَّاسٍ  

"No one informed that they saw Messenger of Allah praying Ad-Duha except Umm Hani. She narrated that Messenger of Allah entered her house on the Day of the Conquest of Makkah. He performed Ghusl and performed eight voluntary Rak'ah such that she had not ever seen him pray any Salat lighter than them, but that he completed the bowing and prostrations."  

أَنَّهُ رَأَى النَّبِيَّ ﷺ يُصَلِّي الضُّحَى إِلاَّ أُمُّ هَانِئٍ فَإِنَّهَا حَدَّثَتْ أَنَّ رَسُولَ اللَّهِ ﷺ دَخَلَ بَيْتَهَا يَوْمَ فَتْحِ مَكَّةَ فَاغْتَسَلَ فَسَبَّحَ ثَمَانَ رَكَعَاتٍ مَا رَأَيْتُهُ صَلَّى صَلاَةً قَطُّ أَخَفَّ مِنْهَا غَيْرَ أَنَّهُ كَانَ يُتِمُّ الرُّكُوعَ وَالسُّجُودَ  

Messenger of Allah narrated that Allah, Blessed and Most High said: "Son of Adam: Perform four Rak'ah for Me in the beginning of the day it will suffice you for the latter part of it."  

عَنْ رَسُولِ اللَّهِ ﷺ عَنِ اللَّهِ ﷻ أَنَّهُ قَالَ ابْنَ آدَمَ ارْكَعْ لِي مِنْ أَوَّلِ النَّهَارِ أَرْبَعَ رَكَعَاتٍ أَكْفِكَ آخِرَهُ  

Messenger of Allah said: "Whoever continuously performs the two Rak'ah of Ad-Duha his sins will be forgiven, even if they be like the foam of the sea."  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَافَظَ عَلَى شُفْعَةِ الضُّحَى غُفِرَ لَهُ ذُنُوبُهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ  

"The Prophet would pray Ad-Duha until we would say: 'He will not leave it.' And he would leave it until we would say: 'He will not pray it.'"  

كَانَ نَبِيُّ اللَّهِ ﷺ يُصَلِّي الضُّحَى حَتَّى نَقُولَ لاَ يَدَعُ وَيَدَعُهَا حَتَّى نَقُولَ لاَ يُصَلِّي