Al-Baqarah 2:273
لِلْفُقَرَاءِ الَّذِينَ أُحْصِرُوا فِي سَبِيلِ اللَّهِ لَا يَسْتَطِيعُونَ ضَرْبًا فِي الْأَرْضِ يَحْسَبُهُمُ الْجَاهِلُ أَغْنِيَاءَ مِنَ التَّعَفُّفِ تَعْرِفُهُم بِسِيمَاهُمْ لَا يَسْأَلُونَ النَّاسَ إِلْحَافًا ۗ وَمَا تُنفِقُوا مِنْ خَيْرٍ فَإِنَّ اللَّهَ بِهِ عَلِيمٌ ٢٧٣
Lilfuqarai allatheena ohsiroo fee sabeeli Allahi la yastateeAAoona darban fee alardi yahsabuhumu aljahilu aghniyaa mina alttaAAaffufi taAArifuhum biseemahum la yasaloona alnnasa ilhafan wama tunfiqoo min khayrin fainna Allaha bihi AAaleemun
it being for the poor who are restrained in the way of God, and are unable to journey in the land; the ignorant man supposes them rich because of their abstinence, but thou shalt know them by their mark -- they do not beg of men importunately. And whatever good you expend, surely God has knowledge of it. (2:273)