Musannaf Ibn Abi Shaybah 39647 — The Battle of Khaybar

It is narrated from Sayyiduna Abu Talhah (may Allah be pleased with him): On the day of Khaybar I was riding behind the Prophet (peace and blessings be upon him). When we reached (Khaybar), those people had come out (to their fields) with their spades. When they saw us, they said: "Muhammad! By Allah, Muhammad and the army!" The Prophet (peace and blessings be upon him) said: "Allahu Akbar! When we descend into the courtyard of a people, then evil is the morning of those who were warned."