Advancing Ramadan by fasting one or two days for one who coincides with a fast he has habitually observed

The questioner:
May Allah reward you. In his other question, he says: I fasted on Thursday voluntarily, and then the first day of the month of Ramadan was on Saturday. I did not know that it is not permissible to fast the few days before Ramadan. Do I have a sin upon me? And what are those days that are not to be fasted before Ramadan?

The Shaykh:
There is no sin on one who has a habitual fast to fast one or two days before Ramadan. The prohibition is for one who does not have a habitual fast and intentionally fasts two days or one day before Ramadan, considering them to be part of Ramadan. This is what is prohibited. As for one who fasts before Ramadan because it is his habit to fast on Thursdays or Mondays, or to fast the white days, and that coincides with the days before Ramadan, there is no blame on him for that; because he did not intend to fast them as part of Ramadan or as a prelude to Ramadan, but rather he fasted them based on his habitual fasting throughout the year. Yes.

The questioner:
What if he does not have a habit of fasting and did not intend a day of Ramadan?

The Shaykh:
If he does not have a habit of fasting, he should not fast one or two days before Ramadan, because it is feared that this would be an addition to the obligatory fast. The Messenger (peace and blessings be upon him) said: Yes.