It wasnarrated from Mu'adh bin Jabal that the Messenger of Allah(ﷺ)said:
"Shall I not tell you about the kings of Paradise?' Isaid:'Yes.' He said: 'A weak and oppressed man who wears tatteredclothes and is not paid any heed. If he swears (an oath) by Allah,Allah fulfills it.'" (JA)
English reference (JA): Vol. 5, Book 37, Hadith 4115 (JA)
Arabic reference (JA): Book 37, Hadith 4254 (JA)