The reason for the naming of the Day of 'Arafah

Question:
I seek forgiveness from Allah. This questioner asks: Why is the Day of 'Arafah called by this name? Please inform us, Your Eminence the Shaykh. May Allah reward you with good.

Answer:
It is said that 'Arafah was named so because people get to know one another in it; they gather and become acquainted. It is also said that it was named so because Ibrahim (peace be upon him) saw in a dream that he was slaughtering his son on the Day of 'Arafah, and he was reassured by it. Then he saw it again on the Day of 'Arafah, so he knew that it was the truth and that it was from Allah. For this reason, he carried out the sacrifice on the Day of Sacrifice and slaughtered his son. When he laid him down on his forehead and all that remained was to run the knife, he was called out to: "O Ibrahim, you have verified your dream" (peace be upon him). And Allah ransomed his son with a great sacrifice, and delivered him from being slaughtered (peace be upon him).
The point is that 'Arafah was named so either because people get to know one another when they gather from many homelands—this one asks this one, and this one knows this one, and this one reminds him that he met him once before and they became acquainted—or because of Ibrahim's dream. And Allah knows best. The matter is easy regarding names; names are an easy matter. May Allah reward you with good.