BAYHAQI 7942:
from Abū Hurayrah —
[Machine] On the authority of the Prophet ﷺ , he said: "None of you should precede Ramadan with fasting a day or two except if it is a fast that a person regularly observes, then let him fast that fast."
البيهقي ٧٩٤٢:
عن ابو هريره —
عَنِ النَّبِيِّ ﷺ قَالَ لَا يَتَقَدَّمَنَّ أَحَدُكُمْ رَمَضَانَ بِصَوْمِ يَوْمٍ وَلَا يَوْمَيْنِ إِلَّا أَنْ يَكُونَ صَوْمًا يَصُومُهُ رَجُلٌ فَلْيَصُمْ ذَلِكَ الصَّوْمَ