It is narrated from Sayyiduna Hubshi bin Junadah al-Saluli (may Allah be pleased with him) that he heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever begs from people without a genuine need, it is as though he is swallowing a burning hot stone."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3492