Standing outside of 'Arafat

Question :

If the Hajj pilgrim stands outside of the boundaries of 'Arafat but near to it until the sun sets, then he leaves, what is the ruling on his Hajj?

Answer:

If the Hajj pilgrim does not stand at 'Arafat during the time of standing, he has no Hajj. This is due to the Prophet's statement:
"The Hajj is 'Arafah, so whoever catches 'Arafah at night before the Fajr time begins, then he has caught the Hajj."

The time for standing is after midday on the day of 'Arafah (the 9th of Thul-Hijjah) until the Fajr time begins on the night before the day of Sacrifice (the 10th of Thul-Hijjah). This is what there is a consensus for (i.e., Ijma') among the people of knowledge.

In reference to what is before midday, there is a difference of opinion among the people of knowledge. Most of them hold the view that standing at that time at 'Arafat is not sufficient if the person does not stand after midday or during the night. Whoever stands during the daytime after midday or during the night, that suffices him. It is better for him to stand during the daytime after the prayers of Zuhr and 'Asr combined early (in the time of Az-Zuhr), until sunset. It is not permissible to leave before sunset for whoever stands during the daytime. If the person does so, he must slaughter an animal according to most of the people of knowledge, as he has left off an obligation, which is combining - in the standing-between the night and the day, for whoever stands during the daytime.

Source:
Ash-Shaykh Ibn Baz
Fatawa Islamiyah, Vol. 4 Pages 214-215