Abu Hurairah narrated that the Messenger of Allah(s.a.w) said:
"Indeed Allah, Most High said: 'O son of Adam! Devote yourself to My worship, I will fill your chest with riches and alleviate your poverty. And if you do not do so, then I will fill your hands with problems and not alleviate your poverty.'" (FR)
English reference (FR): Vol. 4, Book 11, Hadith 2466 (FR)
Arabic reference (FR): Book 37, Hadith 2654 (FR)