قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَقَدَّمُوا رَمَضَانَ بِصَوْمِ يَوْمٍ وَلاَ يَوْمَيْنِ إِلاَّ رَجُلٌ كَانَ يَصُومُ صَوْمًا فَلْيَصُمْهُ ".
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:Do not observe fast for a day, or two days ahead of Ramadan except a person who is in the habit of observing a particular fast; he may fast on that day