Word by Word Analysis

لَّيْسَ عَلَى ٱلضُّعَفَآءِ وَلَا عَلَى ٱلْمَرْضَىٰ وَلَا عَلَى ٱلَّذِينَ لَا يَجِدُونَ مَا يُنفِقُونَ حَرَجٌ إِذَا نَصَحُوا۟ لِلَّهِ وَرَسُولِهِۦ ۚ مَا عَلَى ٱلْمُحْسِنِينَ مِن سَبِيلٍ ۚ وَٱللَّهُ غَفُورٌ رَّحِيمٌ 91

There is not upon the weak or upon the ill or upon those who do not find anything to spend any discomfort [i.e., guilt] when they are sincere to Allāh and His Messenger. There is not upon the doers of good any cause [for blame]. And Allāh is Forgiving and Merciful.