حَدَّثَنَا مُحَمَّدُ بْنُ عَبَّادِ بْنِ آدَمَ، حَدَّثَنَا أَبُو أَحْمَدَ، حَدَّثَنَا سُفْيَانُ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ سُلَيْمَانَ بْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، قَالَ كَانَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ يُعَلِّمُهُمْ إِذَا خَرَجُوا إِلَى الْمَقَابِرِ كَانَ قَائِلُهُمْ يَقُولُ السَّلاَمُ عَلَيْكُمْ أَهْلَ الدِّيَارِ مِنَ الْمُؤْمِنِينَ وَالْمُسْلِمِينَ وَإِنَّا إِنْ شَاءَ اللَّهُ بِكُمْ لاَحِقُونَ نَسْأَلُ اللَّهَ لَنَا وَلَكُمُ الْعَافِيَةَ ‏.‏

It wasnarrated from Sulaiman bin Buraidah that his father said: “TheMessenger of Allah (PBUH) used to teach them, when they went out tothegraveyard, to say: As-salamu ‘alaykum ahlad-diyarminal-mu’minina wal-muslimin, wa inna insha’ Allah bikum lahiqun,nas’alul-laha lana walakumul-‘afiyah (Peace be upon you, Oinhabitants of the abodes,believers and Muslims, and we will joinyou soon if Allah wills. Weask Allah for well-being for us and foryou).’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 6 Hadith 1547
Web Ref:  Sunan Ibn Majah Vol 1 Book 6 Hadith 1547