‘Do not anticipate Ramadan by fasting one or two days before, except for a man who has a habitual pattern of fasting, in which case let him fast.”

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَقَدَّمُوا صِيَامَ رَمَضَانَ بِيَوْمٍ وَلاَ بِيَوْمَيْنِ إِلاَّ رَجُلٌ كَانَ يَصُومُ صَوْمًا فَيَصُومُهُ