If you're looking for (which mentions "most of them do not believe" or a decree upon them), here it is:

If by you mean a particular recitation, PDF file, or Tafsir titled "Yasin & Al-Mubin" (referring to Surah Yasin as "Al-Mubin" – the clear Quran), please clarify.

"The word (decree) has indeed been justified against most of them, so they will not believe."

لَقَدْ حَقَّ الْقَوْلُ عَلَىٰ أَكْثَرِهِمْ فَهُمْ لَا يُؤْمِنُونَ

It seems you're referring to a PDF of with a focus on Verse 7 (or a concept related to "Mubin" – often meaning "clear/evident").