It is narrated from Sayyidah Amrah (may Allah be pleased with her), the sister of Abdullah bin Rawahah (may Allah be pleased with him), that the Prophet (peace and blessings be upon him) said: "Going out has become obligatory upon everyone who wears a waistband."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21217