Muwatta Malik 837
موطأ مالك#837SahihYahya related to me from Malik from Muhammad ibn Yahya ibn Habban from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, forbade fasting on two days - the day of the Id al-Fitr and the day of the Id al-Adha
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliSahih
In-book reference: 20:133