64. Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) - كتاب المغازى
35) Chapter: The Ghazwa of Al-Hudaibiya
Narrated Sa`id bin Al-Musaiyab:
That his father was amongst those who had given the Pledge of allegiance (to the Prophet (ﷺ) ) beneath
the Tree, and the next year when they went towards the Tree, they were not able to recognize it.