Authentic
graded by Al-Albani
Mishkat al-Masabih 2048
Narrator:Abu Sa‘īd al-Khudri
وَعَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ: نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ صَوْمِ يَوْمِ الْفِطْرِ وَالنَّحْرِ
Abu Sa'id al-Khudri said God’s messenger forbade fasting on the day of breaking the fast of Ramadan and on the day of sacrifice. (Bukhari and Muslim.)
Cited in Mishkat al-Masabih (No. 2048).