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 salat after the Fajr (morning) and the `Asr (afternoon) salat.
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا عَمْرُو بْنُ يَحْيَى، عَنْ أَبِيهِ، عَنْ أَبِي سَعِيدٍ ـ رضى الله عنه ـ قَالَ نَهَى النَّبِيُّ صلى الله عليه وسلم عَنْ صَوْمِ يَوْمِ الْفِطْرِ وَالنَّحْرِ، وَعَنِ الصَّمَّاءِ، وَأَنْ يَحْتَبِيَ الرَّجُلُ فِي ثَوْبٍ وَاحِدٍ. وَعَنْ صَلاَةٍ، بَعْدَ الصُّبْحِ وَالْعَصْرِ.
Reference : Sahih al-Bukhari 1991, 1992
In-book reference : Book 30, Hadith 98
USC-MSA web (English) reference : Vol. 3, Book 31, Hadith 212