[Machine] It was from the final advice of the Prophet Muhammad ﷺ to emphasize prayer and taking care of those under one's authority until the Prophet Muhammad ﷺ made it seem as if it was tied to his chest, and he would frequently mention it with his tongue.
كَانَ مِنْ آخِرِ وَصِيَّةِ رَسُولِ اللهِ ﷺ الصَّلَاةَ الصَّلَاةَ وَمَا مَلَكَتْ أَيْمَانُكُمْ حَتَّى جَعَلَ نَبِيُّ اللهِ ﷺ يُلَجْلِجُهَا فِي صَدْرِهِ وَمَا يَفِيصُ بِهَا لِسَانُهُ
[Machine] "Umm Salama, the wife of the Prophet ﷺ, said that it was a general recommendation of the Prophet of Allah ﷺ when he was on his deathbed to establish prayer, establish prayer, and take care of what your right hand possesses, until the Prophet of Allah ﷺ used to say it quietly to himself and his tongue would not stop repeating it."
عَنْ أُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ ﷺ أَنَّهُ كَانَ عَامَّةُ وَصِيَّةِ نَبِيِّ اللهِ ﷺ عِنْدَ مَوْتِهِ الصَّلَاةَ الصَّلَاةَ وَمَا مَلَكَتْ أَيْمَانُكُمْ حَتَّى جَعَلَ نَبِيُّ اللهِ ﷺ يُلَجْلِجُهَا فِي صَدْرِهِ وَمَا يَفِيضُ بِهَا لِسَانُهُ
[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»
" كانَتْ عَامَّةُ وَصِيَّة رَسُولِ الله ﷺ حِينَ حَضَرَهُ المَوْتُ: الصَّلاَةَ، وَمَا مَلَكَتْ أيْمَانُكُمْ حَتَّى جَعَلَ يُغَرْغِرُها فِى صَدْرِه، وَمَا يُفيضُ بِهَا لسَانُهُ، يَقُولُ: لا يبينُ كِلاَهُمَا مِن الوَجَع ".
"عَنْ أُمِّ سَلَمَةَ قَالَتْ: كَانَ عَامَّةُ وَصِيَّةِ رَسُولِ اللهِ ﷺ الصَّلَاةَ الصَّلَاةَ وَمَا مَلَكَتْ أَيْمَانُكُمْ، حَتَّى جَعَلَ يُخْلجهَا فِي صَدْرِهِ، وَمَا يَقْبِضُ بِهَا لِسَانَهُ".