(66) باب صَوْمِ يَوْمِ الْفِطْرِ
Narrated Abu Sa`id:
The Prophet (ﷺ) forbade the fasting of `Id-ul-Fitr and `Id-ul-Adha (two feast days) and also the wearing of As-Samma' (a single garment covering the whole body), and sitting with one's leg drawn up while being wrapped in one garment. He also forbade the prayers after the Fajr (morning) and the `Asr (afternoon) prayers.
Reference: Sahih al-Bukhari 1991, 1992
In-book reference: Book 30, Hadith 98
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 31, Hadith 212