It was narrated from Abu Sa’eed that:The Messenger of Allah (ﷺ) forbade fasting on the Day of Fitr and the Day of Adha
Hadith No. 1721
Sunan Ibn Majah
Gradings:
Al-Albani:
Sahih
Muhammad Fouad Abd al-Baqi:
Sahih
Shuaib Al Arnaut:
Sahih
Zubair Ali Zai:
Sahih - Bukhari And Muslim