Abu Hurairah (May Allah be pleased with him) reported:
The Prophet ﷺ said, "(Prophet) Dawud ﷺ ate only out of that which he earned through his manual work."

[Al-Bukhari].

وعنه عن النبي ﷺ قال: "كان داود عليه السلام لا يأكل إلا من عمل يده". ((رواه البخاري)).