The Prophet (peace and blessings be upon him) said:
"It may be that a dishevelled person, who is pushed away from doors, were he to swear an oath by Allah, Allah would fulfil it."
Hadith Referenceصحیح الجامع الصغیر / حرف الراء / 3484
Hadith Gradingالألبانی:صحيح
Hadith Takhrij[حم م] عن أبي هريرة. مختصر مسلم ١٩٧٢، تخريج مشكلة الفقر ١٢٥.