I asked Ibn ʿUmar "Do you offer the Duha prayer?" He replied in the negative. I further asked, "Did ʿUmar use to pray it?" He (Ibn ʿUmar) replied in the negative. I again asked, "Did Abu Bakr use to pray it?" He replied in the negative. I again asked, "Did the Prophet ﷺ use to pray it?" Ibn ʿUmar replied, "I don't think he did."  

قُلْتُ لاِبْنِ عُمَرَ ؓ أَتُصَلِّي الضُّحَى قَالَ لاَ قُلْتُ فَعُمَرُ قَالَ لاَ قُلْتُ فَأَبُو بَكْرٍ قَالَ لاَ قُلْتُ فَالنَّبِيُّ ﷺ قَالَ لاَ إِخَالُهُ  

Only Um Hani narrated to me that she had seen the Prophet ﷺ offering the Duha prayer. She said, "On the day of the conquest of Mecca, the Prophet ﷺ entered my house, took a bath and offered eight rakʿat (of Duha prayers. I had never seen the Prophet ﷺ offering such a light prayer but he performed bowing and prostrations perfectly .  

أَنَّهُ رَأَى النَّبِيَّ ﷺ يُصَلِّي الضُّحَى غَيْرَ أُمِّ هَانِئٍ فَإِنَّهَا قَالَتْ إِنَّ النَّبِيَّ ﷺ دَخَلَ بَيْتَهَا يَوْمَ فَتْحِ مَكَّةَ فَاغْتَسَلَ وَصَلَّى ثَمَانِيَ رَكَعَاتٍ فَلَمْ أَرَ صَلاَةً قَطُّ أَخَفَّ مِنْهَا غَيْرَ أَنَّهُ يُتِمُّ الرُّكُوعَ وَالسُّجُودَ