The last words which the Messenger of Allah ﷺ spoke were: Prayer, prayer; fear Allah about those whom your right hands possess.  

كَانَ آخِرُ كَلاَمِ رَسُولِ اللَّهِ ﷺ الصَّلاَةَ الصَّلاَةَ اتَّقُوا اللَّهَ فِيمَا مَلَكَتْ أَيْمَانُكُمْ  

“The last words of the Prophet ﷺ were: The prayer; and those whom your right hands prossess.”  

كَانَ آخِرُ كَلاَمِ النَّبِيِّ ﷺ الصَّلاَةَ وَمَا مَلَكَتْ أَيْمَانُكُمْ  

ʿThe last words of the Messenger of Allah ﷺ were: “Prayer, prayer! And fear Allah with regard to what your right hands possess, [i.e.female slaves].ʿ  

كَانَ آخِرُ كَلامِ رَسُولِ اللهِ ﷺ الصَّلاةَ الصَّلاةَ اتَّقُوا اللهَ فِيمَا مَلَكَتْ أَيْمَانُكُمْ  

[Machine] The last advice of the Messenger of Allah ﷺ was to "maintain the prayer, maintain the prayer, and fear Allah regarding what is entrusted to your care."  

كَانَ آخِرُ وَصِيَّةِ رَسُولِ اللَّهِ ﷺ وَهُوَ يُغَرْغِرُ بِهَا فِي صَدْرِهِ وَمَا كَانَ يُفِيضُ بِهَا لِسَانُهُ «الصَّلَاةَ الصَّلَاةَ اتَّقُوا اللَّهَ فِيمَا مَلَكَتْ أَيْمَانَكُمْ»  

ʿThe last words of the Messenger of Allah ﷺ were: “Prayer, prayer! And fear Allah with regard to what your right hands possess, [i.e.female slaves].ʿ (Using translation from Aḥmad 585)   

كَانَ آخِرُ كَلَامِ رَسُولِ اللهِ ﷺ الصَّلَاةَ الصَّلَاةَ اتَّقُوا اللهَ فِيمَا مَلَكَتْ أَيْمَانُكُمْ