Prohibition to fast a day or two before Ramadan
The Prophet ﷺ said, "None of you should fast ˹a voluntary fast˺ a day or two before the month of Ramadan unless he has the habit of fasting ˹such days voluntarily˺ then he may fast that day."
عَنِ النَّبِيِّ ﷺ قَالَ: «لاَ يَتَقَدَّمَنَّ أَحَدُكُمْ رَمَضَانَ بِصَوْمِ يَوْمٍ أَوْ يَوْمَيْنِ إِلاَّ أَنْ يَكُونَ رَجُلٌ كَانَ يَصُومُ صَوْمَهُ فَلْيَصُمْ ذَلِكَ الْيَوْمَ۔»