Surah Al-Qasas 28:44
وَمَا كُنتَ بِجَانِبِ ٱلْغَرْبِىِّ إِذْ قَضَيْنَآ إِلَىٰ مُوسَى ٱلْأَمْرَ وَمَا كُنتَ مِنَ ٱلشَّٰهِدِينَ ٤٤
EnglishSahih International
And you, [O Muhammad], were not on the western side [of the mount] when We revealed to Moses the command, and you were not among the witnesses [to that].