(70) باب مَنْ قَالَ الاِثْنَيْنِ وَالْخَمِيسِ
Narrated Hafsah, Ummul Mu'minin:
The apostle of Allah (ﷺ) used to fast three days every month: Monday, Thursday and Monday in the next week. (ES)
Reference (ES): Sunan Abi Dawud 2451 (ES)
In-book reference (ES): Book 14, Hadith 139 (ES)
English translation (ES): Book 13, Hadith 2445 (ES)