It is narrated from Sayyiduna Abu Hurayrah and Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) delivered a sermon to us and narrated a very long hadith in it. In this hadith it was also mentioned: "And whoever feeds someone food merely for show (riya') and for fame and renown (sum'ah), Allah Almighty will feed him from the pus of Hell (that is, the foul discharge of wounds), and that food (which he fed in the world) will remain fire in his belly on the Day of Resurrection until judgement is passed between the people."
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :الحديث موضوع. » «أخرجه المطالب العالية لابن حجر برقم: 245»