As for the hadith forbidding fasting on the Day of Arafah in Arafat, its chain of transmission is Mahdi bin Harb Al-Hijri, and it is not known.

It was narrated by Al-Nasa’i from his hadith on the authority of Abu Hurairah, who said that the Messenger of God, may God bless him and grant him peace, forbade fasting on the Day of Arafah in Arafat

As for

the hadith of Al-Tirmidhi on the authority of Uqba bin Aamir, he said: The Messenger of God, may God’s prayers and peace be upon him, said: The Day of Arafat, the Day of Sacrifice, and the Days of Tashreeq are our festival, people of Islam, and they are days of eating and drinking .

Abu Issa Hadith Uqba is a good and authentic hadith, so it is as if he refers with this saying to what we said and refers to the position of knowledge and the knower, for the position of knowledge does not give fasting, as the knower knows fasting for whom it is, so the day of his Eid was the day he attained this positio