Full Sharh — Al-Adab Al-Mufrad 240
حَدَّثَنَا أَحْمَدُ بْنُ عَاصِمٍ قَالَ: حَدَّثَنِي حَيْوَةُ، قَالَ: حَدَّثَنَا بَقِيَّةُ، عَنِ ابْنِ ثَوْبَانَ، عَنْ أَبِيهِ، عَنْ مَكْحُولٍ، عَنْ وَقَّاصِ بْنِ رَبِيعَةَ، عَنِ الْمُسْتَوْرِدِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ: مَنْ أَكَلَ بِمُسْلِمٍ أُكْلَةً، فَإِنَّ اللَّهَ يُطْعِمُهُ مِثْلَهَا مِنْ جَهَنَّمَ، وَمَنْ كُسِيَ بِرَجُلٍ مُسْلِمٍ فَإِنَّ اللَّهَ عَزَّ وَجَلَّ يَكْسُوهُ مِنْ جَهَنَّمَ، وَمَنْ قَامَ بِرَجُلٍ مَقَامَ رِيَاءٍ وَسُمْعَةٍ فَإِنَّ اللَّهَ يَقُومُ بِهِ مَقَامَ رِيَاءٍ وَسُمْعَةٍ يَوْمَ الْقِيَامَةِ.
English Translation
Al-Mustawrid reported that the Prophet, may Allah bless him and grant him peace, said, "If anyone eats a meal at the expense of a Muslim's honour, Allah will feed him a like amount of Hellfire. If anyone clothes himself with a garment at the expense of a Muslim's honour, Allah will clothe him with a like amount of Hellfire. If anyone achieves a position of showing-off and hypocrisy at the expense of a Muslim's honour, Allah will put him in a position of showing-off and hypocrisy on the Day of Rising.
Source
Al-Adab Al-Mufrad(الأدب المفرد)
Cheerfulness Towards People
Hadith Number
240