I am being taught the asim way and have been told that there are 4 surahs that cannot have the bismila joined with them.

Question
I am being taught the asim way and have been told that there are 4 surahs that cannot have the bismila joined with them, these include surah Masad, tawba, muhammad and humazah. This is due to the fact that they are about the hypocrites?

Answer
The only surah which does not have a basmalah at the beginning is surah At-Tawbah.  If one starts in the middle of this surah with the isti'aadhah and then wishes to say the basmalah after that, they may.
As to the other surahs mentioned, they all have the basmalah at the beginning, and one must begin these surahs with the basmalah.