the Messenger of Allah said: "Do no precede the month of Ramadan by fasting a day or two before it, unless it is the case of a man who normally performs some fast, then let him fast it."

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَقَدَّمُوا شَهْرَ رَمَضَانَ بِصِيَامٍ قَبْلَهُ بِيَوْمٍ أَوْ يَوْمَيْنِ إِلاَّ أَنْ يَكُونَ رَجُلٌ كَانَ يَصُومُ صَوْمًا فَلْيَصُمْهُ