Standing at `Arafah is a rukn of Hajj without which Hajj is invalid. Whoever misses standing at `Arafah misses Hajj. Consensus on it being a rukn was related by Ibn `Abd al-Barr, Ibn al-Mundhir, and Ibn Qudamah.
Mohammed Abdulaziz Al-rajhi
Ahmed Mohammad Baqlaf
Muzun Charity
Abdulaziz & Mohammad Al-Ojaimi & their families Charity
Salem Bin Mahfouz
Ali Abdulaziz Al-dowayan
Abdullah AlSubeaie Charitable