What was narrated concerning the sermon on Friday Sunan Ibn Majah 1107

Arabic hadith text
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ سَعْدِ بْنِ عَمَّارِ بْنِ سَعْدٍ، حَدَّثَنِي أَبِي، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ كَانَإِذَا خَطَبَ فِي الْحَرْبِ، خَطَبَ عَلَى قَوْسٍ. وَإِذَا خَطَبَ فِي الْجُمُعَةِ، خَطَبَ عَلَى عَصًا ‏.‏
Translation

‘Abdur-Rahman bin Sa’d bin ‘Ammar bin Sa’d narrated that hisfathertold him, from his father, from his grandfather, that when theMessenger of Allah (ﷺ) delivered a speech on the battlefield hewould do so leaning on a bow, and when he delivered a sermon onFriday, he would do so leaning on his staff.