وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ
قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا يَتَقَدَّمَنَّ أَحَدُكُمْ رَمَضَانَ بِصَوْمِ يَوْمٍ أَوْ يَوْمَيْنِ إِلَّا أَنْ يَكُونَ رَجُلٌ كَانَ يَصُوم صوما فليصم ذَلِك الْيَوْم»
Abu Hurayrah reported God’s messenger as saying, “None of you must fast one day or two days just before Ramadan, except in the case of a man who has been in the habit of observing a particular fast, for he may fast on that day.”* *If a man is in the habit of fasting on a particular day of the week and one or other of the two days before Ramadan falls on that day, he may observe his usual practice.
Mishkat al-Masabih 1883, Book 8, Fasting, Hadith 17. 1 min read