It was narrated from Qabus that his father said:
“My father sent word to ‘Aishah, asking which prayer the Prophet ﷺ most liked to perform regularly. She said: ‘He used to perform four Rak’ah before the Zuhr, in which he would stand for a long time and bow and prostrate perfectly.’”

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ قَابُوسَ، عَنْ أَبِيهِ، قَالَ أَرْسَلَ أَبِي إِلَى عَائِشَةَ أَىُّ صَلاَةِ رَسُولِ اللَّهِ ـ ﷺ ـ كَانَ أَحَبَّ إِلَيْهِ أَنْ يُوَاظِبَ عَلَيْهَا قَالَتْ كَانَ يُصَلِّي أَرْبَعًا قَبْلَ الظُّهْرِ يُطِيلُ فِيهِنَّ الْقِيَامَ وَيُحْسِنُ فِيهِنَّ الرُّكُوعَ وَالسُّجُودَ .