No one has ever narrated to me that he saw the Messenger of Allah ﷺ observing the forenoon prayer, except Umm Hani. She, however, narrated that the Messenger of Allah ﷺ entered her house on the day of the Conquest of Mecca and prayed eight rak'ahs (adding): I never saw a shorter prayer than it except that he performed the bowing and prostration completely. But (one of the narrators) Ibn Bashshar in his narration made no mention of the word:" Never".
مَا أَخْبَرَنِي أَحَدٌ أَنَّهُ رَأَى النَّبِيَّ ﷺ يُصَلِّي الضُّحَى إِلاَّ أُمُّ هَانِئٍ فَإِنَّهَا حَدَّثَتْ أَنَّ النَّبِيَّ ﷺ دَخَلَ بَيْتَهَا يَوْمَ فَتْحِ مَكَّةَ فَصَلَّى ثَمَانِيَ رَكَعَاتٍ مَا رَأَيْتُهُ صَلَّى صَلاَةً قَطُّ أَخَفَّ مِنْهَا غَيْرَ أَنَّهُ كَانَ يُتِمُّ الرُّكُوعَ وَالسُّجُودَ وَلَمْ يَذْكُرِ ابْنُ بَشَّارٍ فِي حَدِيثِهِ قَوْلَهُ قَطُّ