Why is standing at 'Arafah the most important pillar of Hajj?

Question:
This questioner says: We were in a gathering discussing matters of religion, and a question occurred to us, which is: Why is the Day of 'Arafah considered the most important pillar of Hajj? May Allah reward you with good.

Answer:
Because the Messenger (peace and blessings be upon him) said regarding it: The Messenger (peace and blessings be upon him) clarified that Hajj is 'Arafah; it is the greatest pillar. Whoever misses standing at 'Arafah misses Hajj, because the Messenger (peace and blessings be upon him) clarified that, saying: So whoever catches 'Arafah at night has caught Hajj. This indicates that whoever does not catch 'Arafah has missed Hajj. Yes.

The presenter: May Allah reward you.