'Iyyaka na'budu (You alone do we worship).'
Muhammad said: The meaning of 'worship' (al-'ibadah) in the language is: obedience accompanied by humility. From this, it is said: A 'mu'abbad' (beaten/levelled) path, if it has been made easy and trodden upon by much walking.
﴿إياك نعْبد﴾.
قَالَ مُحَمَّد: معنى الْعِبَادَة فِي اللُّغَة: الطَّاعَة مَعَ الخضوع، وَمن هَذَا يُقَال: طَرِيق مُعَبَّدٌ إِذا كَانَ مذللا بِكَثْرَة الْمَشْي عَلَيْهِ.