Sunan Ibn Majah, Book 6, Hadith 1601 (In-Book) ⓘ
It was narrated from Abu Hurairah: “The Messenger of Allah said: ‘Najashi has died.’ The Messenger of Allah and his Companions went out to Al-Baqi’, and we lined up in rows behind him, and the Messenger of Allah went forward, then he said four Takbir.”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ الأَعْلَى، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " إِنَّ النَّجَاشِيَّ قَدْ مَاتَ " . فَخَرَجَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ وَأَصْحَابُهُ إِلَى الْبَقِيعِ . فَصَفَّنَا خَلْفَهُ وَتَقَدَّمَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ فَكَبَّرَ أَرْبَعَ تَكْبِيرَاتٍ .
also referenced under: Hadith 1534 (Reference) & Volume 2, Book 6, Hadith 1534 (DarusSalam)