Itihaf ul-Basim Fi Tahqiq Muwatta al-Imam Malik [Talkhis al-Qabisi] Riwayah Abdur Rahman ibn al-Qasim
Tahqiq, Takhrij, Sharh
Muhadith Zubair Ali Zai
Translated Abu Ubaydah
Translated, Checked & Additional Notes
Abu Hibban & Abu Khuzaimah Ansaari
It Is Prohibited To Fast On The Days Of Eid
 From Malik from Muhammad ibn Yahya ibn Haban from al-‘Araj from Abu Hurairah (Radi Allahu Anhu) that the Messenger of Allah (Sallalahu Alayhi Wa Sallam) forbade fasting on two days, the day of Eid al-Fitr and the day of Eid al-Adha.
[GRADING] – [IT’S CHAIN IS SAHIH]
[REFERENCES] – [MUSLIM]
Al-Muwatta (Yahya’s narration 1/300 hadith no.674, book 18, chapter 12, hadith no.36, 1/376, hadith no.756, book 20, chapter 44 hadith no.136), at-Tamhid (13/26), al-Istidhkar: (no.624)
Transmitted by Muslim (no.1138) from the hadith of Malik
[UNDERSTANDING FROM THE HADITH]
1) It is haram to fast on the day of Eid al-Fitr or Eid al-Adha on purpose (whilst knowing with certainty that the moon of Shawal has been sighted).
2) If someone makes a vow to fast on the day of Eid then this vow is false.
3) Some scholars derive and understand from this hadith that it is allowed to fast all the time on the condition that you don’t fast on the prohibited days. See al-Muwatta (Yahya’s narration 1/300)
4) It is better to avoid fasting all the time and the most one should fast is the way Dawud (Alayhisalam) fasted. i.e. one day fast and one day not fast, this is the most virtuous method.
5) Those narrations which mention that it is prohibited to fast all the time is understood to mean disliked (which doesn’t reach to the level of haram i.e. it is makru tanzihi and not makru tahrimi), excluding the days of Eid which are prohibited.
6) Also see hadith no.73