Did you know,

That “fasting on the day of Arafat” (i.e. 9th Dhul Hijjah), “which immediately precedes the day of the Eid of Sacrifice” (i.e. Eid Al-Adha), “is also recommended, except for those who are doing the pilgrimage”. [1], [2]

Ref

1. Our Dialogue – “After Ramadan — Some Suggestions [Oct. ’06]” (link)
2. Our Dialogue – “After Ramadan [Nov. ’09]” (link)
3. “English Translation of Jāmi‘ At-Tirmidhī”. Compiled by Mohammad Ibn ‘Eisā At-Tirmidhi et al. Darussalam. Nov, 2007. Volume 2, Hadith #749 (Daif), pg 186 (please refer to Comments)