It is narrated from Sayyiduna Abu Talhah that when the Prophet (peace and blessings be upon him) reached the place of Khaybar in the morning, the people of Khaybar had already gone out to their fields and lands for their work. When they saw the Prophet (peace and blessings be upon him) and an army with him, they turned their backs and fled. The Prophet (peace and blessings be upon him) said "Allahu Akbar" twice and said: "When we descend into the courtyard of a people, then the morning of those who have been warned is very evil."