Be aware of religious history; Be knowledgeable; Understand faith history; Celebrate days associated with revelations from Allah

This hadith is about a conversation between Umar and some Jews. The Jews asked Umar why Muslims celebrate a certain day, to which he replied that he knew when and where it was revealed. He then went on to explain that it was revealed on the day of Arafat during Hajj, and that he himself was present at Arafat when it happened. He also mentioned that there is some doubt as to whether or not another verse in the Quran was revealed on a Friday or not. This hadith teaches us that we should be aware of our religious history so we can better understand our faith. It also shows us how important it is for us to be knowledgeable in order for us to answer questions people may have about Islam. Furthermore, this hadith highlights how important Hajj is in Islam as many revelations were made during this time period.