Muwatta Malik, Book 16, Hadith 14 (USC-MSA)

Yahya related to me from Malik from Ibn Shihab from Said ibn al- Musayyab from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, announced the death of an Najashi to everyone on the day that he died, and went out with them to the place of prayer, and then formed them into rows and said "Allah is greater" four times.

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَعَى النَّجَاشِيَّ لِلنَّاسِ فِي الْيَوْمِ الَّذِي مَاتَ فِيهِ وَخَرَجَ بِهِمْ إِلَى الْمُصَلَّى فَصَفَّ بِهِمْ وَكَبَّرَ أَرْبَعَ تَكْبِيرَاتٍ ‏.‏

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also referenced under: Book 16, Hadith 536 (In-Book)