What was narrated concerning the death and burial of the Prophet (SAW) Sunan Ibn Majah 1634

Arabic hadith text
حَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ الْحِزَامِيُّ، حَدَّثَنَا خَالِي، مُحَمَّدُ بْنُ إِبْرَاهِيمَ بْنِ الْمُطَّلِبِ بْنِ السَّائِبِ بْنِ أَبِي وَدَاعَةَ السَّهْمِيُّ حَدَّثَنِي مُوسَى بْنُ عَبْدِ اللَّهِ بْنِ أَبِي أُمَيَّةَ الْمَخْزُومِيُّ، حَدَّثَنِي مُصْعَبُ بْنُ عَبْدِ اللَّهِ، عَنْ أُمِّ سَلَمَةَ بِنْتِ أَبِي أُمَيَّةَ، زَوْجِ النَّبِيِّ ـ صلى الله عليه وسلم ـ أَنَّهَا قَالَتْكَانَ النَّاسُ فِي عَهْدِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ إِذَا قَامَ الْمُصَلِّي يُصَلِّي لَمْ يَعْدُ بَصَرُ أَحَدِهِمْ مَوْضِعَ قَدَمَيْهِ فَتُوُفِّيَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ فَكَانَ النَّاسُ إِذَا قَامَ أَحَدُهُمْ يُصَلِّي لَمْ يَعْدُ بَصَرُ أَحَدِهِمْ مَوْضِعَ جَبِينِهِ فَتُوُفِّيَ أَبُو بَكْرٍ وَكَانَ عُمَرُ فَكَانَ النَّاسُ إِذَا قَامَ أَحَدُهُمْ يُصَلِّي لَمْ يَعْدُ بَصَرُ أَحَدِهِمْ مَوْضِعَ الْقِبْلَةِ وَكَانَ عُثْمَانُ بْنُ عَفَّانَ فَكَانَتِ الْفِتْنَةُ فَتَلَفَّتَ النَّاسُ يَمِينًا وَشِمَالاً ‏.‏
Translation
It wasnarrated that Umm Salamah bint Abi Umayyah, the wife of theProphet(ﷺ), said

“At the time of the Messenger of Allah (ﷺ), ifaperson stood to pray, his gaze would not go beyond his feet. WhentheMessenger of Allah (ﷺ) died, if a person stood to pray, his gazewould not go beyond the place where he put his forehead whenprostrating. Then Abu Bakr died and it was ‘Umar (the caliph). So,when any person stood to pray his gaze would not go beyond theQiblah.Then came the time of ‘Uthman bin ‘Affan, and there wasFitnah(tribulation, turmoil), and the people started to look rightandleft.”