"The Messenger of Allah would fast Saturdays, Sundays, and Mondays in one months, and Tuesdays, Wednesdays and Thursdays in the next month."
كَانَ رَسُولُ اللَّهِ ﷺ يَصُومُ مِنَ الشَّهْرِ السَّبْتَ وَالأَحَدَ وَالاِثْنَيْنِ وَمِنَ الشَّهْرِ الآخَرِ الثُّلاَثَاءَ وَالأَرْبِعَاءَ وَالْخَمِيسَ