I saw the Prophet ﷺ praying and in the odd rakʿat, he used to sit for a moment before getting up.  

أَنَّهُ رَأَى النَّبِيَّ ﷺ يُصَلِّي فَإِذَا كَانَ فِي وِتْرٍ مِنْ صَلاَتِهِ لَمْ يَنْهَضْ حَتَّى يَسْتَوِيَ قَاعِدًا  

Malik b. al-Huwairith saw that the prophet (may peace by upon him) would not stand at the end of the first or the third rak’ah until he sat down straight.  

أَنَّهُ رَأَى النَّبِيَّ ﷺ إِذَا كَانَ فِي وِتْرٍ مِنْ صَلاَتِهِ لَمْ يَنْهَضْ حَتَّى يَسْتَوِيَ قَاعِدًا  

Messenger of Allah performing Salat. When he was in an odd number of his Salat, he would not get up until he had sat completely.  

أَنَّهُ رَأَى النَّبِيَّ ﷺ يُصَلِّي فَكَانَ إِذَا كَانَ فِي وِتْرٍ مِنْ صَلاَتِهِ لَمْ يَنْهَضْ حَتَّى يَسْتَوِيَ جَالِسًا  

I saw the Prophet ﷺ praying and in the odd rakʿat, he used to sit for a moment before getting up. (Using translation from Bukhārī 823)  

«أَنَّهُ رَأَى رَسُولَ اللَّهِ ﷺ يُصَلِّي فَإِذَا كَانَ فِي وِتْرٍ مِنْ صَلَاتِهِ لَمْ يَنْهَضْ حَتَّى يَسْتَوِي جَالِسًا»  

"I saw the Messenger of Allah ﷺ pray, and when he was in an odd-numbered rak'ah, he did not get up until he had settled in a sitting position." (Using translation from Nasāʾī 1152)  

«رَأَيْتُ رَسُولَ اللهِ ﷺ يُصَلِّي فَإِذَا كَانَ فِي وِتْرٍ مِنْ صَلَاتِهِ لَمْ يَنْهَضْ حَتَّى يَسْتَوِي جَالِسًا»