From Sahih Bukhari (Hadith 2261):
Narrated Abu Musa:I went to the Prophet (ﷺ) with two men from Ash`ari tribe. I said (to the Prophet), "I do not know that they want employment." The Prophet (ﷺ) said, "No, we do not appoint for our jobs anybody who demands it earnestly
Reference: Bukhari 2261