Sahih Muslim , Book 5, Hadith 2266 (USC-MSA) ⓘ
Abu Huraira reported Allah's Messenger as saying: He who begs the riches of others to increase his own is asking only for live coals, so let him ask a little or much.
حَدَّثَنَا أَبُو كُرَيْبٍ، وَوَاصِلُ بْنُ عَبْدِ الأَعْلَى، قَالاَ حَدَّثَنَا ابْنُ فُضَيْلٍ، عَنْ عُمَارَةَ بْنِ، الْقَعْقَاعِ عَنْ أَبِي زُرْعَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ سَأَلَ النَّاسَ أَمْوَالَهُمْ تَكَثُّرًا فَإِنَّمَا يَسْأَلُ جَمْرًا فَلْيَسْتَقِلَّ أَوْ لِيَسْتَكْثِرْ " .
also referenced under: Book 12, Hadith 136 (In-Book) & Hadith 1041 (Reference)