Musannaf Ibn Abi Shaybah 39561 — The Battle of the Trench

It is narrated from Asim bin Umar bin Qatadah that when night came, the Prophet (peace and blessings be upon him) slept, and Jibril came to him (peace and blessings be upon him), or he said: some angel came, and asked: "Which man of your Ummah has died tonight? The people of the heavens rejoice at his death." He (peace and blessings be upon him) said: "No, unless it be Sa'd, for this evening he was gravely ill. What has happened to Sa'd?" The Companions said: "O Messenger of Allah (peace and blessings be upon him)! He has died, and his people came and took him to their quarter." The narrator says: Then he (peace and blessings be upon him) offered the Fajr prayer, and then he (peace and blessings be upon him) set out, and the people also set out (with him, peace and blessings be upon him). He (peace and blessings be upon him) wore the people out by walking (fast), until the people's sandal straps fell from their feet and their cloaks fell from their shoulders. A man said: "O Messenger of Allah (peace and blessings be upon him)! You have worn the people out by walking (fast)!" He (peace and blessings be upon him) said: "I feared that the angels would get ahead of us to Sa'd, just as they got ahead of us to Hanzalah."