Hadith.2183 - Abu Ja’far عليه السلام would never turn away a beggar on the Day of Arafah.
Whoever frees a servant on the eve of the Day of Arafah, it suffices as the Hajj of Islam for the servant, and the master receives two rewards: the reward of freeing the servant and the reward of Hajj.
It has been narrated regarding a servant freed on the Day of Arafah that if they reach either of the two sacred stations (Arafah or Muzdalifah), they have attained Hajj.
The most sinful among the people of Arafah is the one who departs from Arafah while believing they have not been forgiven, meaning one who despairs of the mercy of Allah سبحانه وتعالى, Mighty and Majestic.