EXAMPLE OF PROPHET DAVID H 542 "Prophet David ate only from of the earnings from his labor." R 542 Bukhari with a chain up to Abu Hurairah who related that the Prophet, praise and peace be upon him, said this.
540- وعنه ، عن النبيِّ صلى الله عليه وآله وسلم ، قَالَ : "كَانَ دَاوُدُ تعالى لا يَأكُلُ إِلاَّ مِنْ عَمَلِ يَدِهِ" رواه البخاري .