The Prophet ﷺ said, while his funeral bier was placed before them (meaning Saad's), "The Throne of the Most Merciful trembled for him."
أن نبي ﷺ قال- وجنازته موضوعة ( يعني سعدا)-: اهتز لها عرش الرحمن.
Reported by Muslim in the Virtues (2467), from Muhammad bin Abdullah Razi, who said, Abdul-Wahhab bin Ata Khafaf narrated to us, from Saeed, from Qatada, who said, Anas bin Malik narrated to us, and he related it.