Surah At-Tawbah, Verse 79

ٱلَّذِينَ يَلۡمِزُونَ ٱلۡمُطَّوِّعِينَ مِنَ ٱلۡمُؤۡمِنِينَ فِي ٱلصَّدَقَٰتِ وَٱلَّذِينَ لَا يَجِدُونَ إِلَّا جُهۡدَهُمۡ فَيَسۡخَرُونَ مِنۡهُمۡ سَخِرَ ٱللَّهُ مِنۡهُمۡ وَلَهُمۡ عَذَابٌ أَلِيمٌ٧٩

alladhīna yalmizūna l-muṭawiʿīna mina l-mu'minīna fī l-ṣadaqāti wa-alladhīna lā yajidūna illā juh'dahum fayaskharūna min'hum sakhira l-lahu min'hum walahum ʿadhābun alīmun

Those who criticize the contributors among the believers concerning [their] charities and [criticize] the ones who find nothing [to spend] except their effort, so they ridicule them - Allāh will ridicule them, and they will have a painful punishment.