The Messenger of Allah ﷺ announced the death of Negus to his companions and said, "Seek forgiveness for him." Then he went out with his companions to the prayer ground, stood, and led them in prayer over him just as the funeral prayer is performed.
حدثنا روح حدثنا محمد بن أبي حفصة عن الزهري عن سعيد بن المسيب وأبي سلمة بن عبد الرحمن
أن رسول الله ﷺ نعى النجاشي لأصحابه ثم قال استغفروا له ثم خرج بأصحابه إلى المصلى فقام فصلى بهم كما يصلي على الجنائز
No references are available.
Its isnad is sahih, mentioned previously at 9626.