That the Prophet announced the death of An-Najashi to the people on the day that he died, then he took them out to the prayer place and put them in rows and offered the funeral prayer for him, saying the Takbir four times. (Using translation from Nasāʾī 1971)
أَنَّ النَّبِيَّ ﷺ «نَعَى لِلنَّاسِ النَّجَاشِيَّ الْيَوْمَ الَّذِي مَاتَ فِيهِ ثُمَّ خَرَجَ بِهِمْ إِلَى الْمُصَلَّى فَصَفَّ بِهِمْ فَصَلَّى عَلَيْهِ وَكَبَّرَ أَرْبَعَ تَكْبِيرَاتٍ»