It is narrated from Yahya bin al-Jazzar (may Allah have mercy on him) that a man called Abu al-Ubaydayn - he was blind, and Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) used to look after him - asked him about al-ma'un, and he said: "The axe and the bucket." - or he said: "The axe and the cooking pot." - And he asked him about tabdhir (squandering), and he said: "Spending wealth where it is not rightful." And he asked him about awwah, and he said: "One who is most compassionate."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8974