Muwatta Malik 687
موطأ مالك#687SahihYahya related to me from Malik from Abu'z Zinad from al-A'raj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "Fasting is a protection for you, so when you are fasting, do not behave obscenely or foolishly, and if any one argues with you or abuses you, say, 'I am fasting. I am fasting
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: 18:3