Hadithcore
Al-Adab Al-Mufrad, 471
hasan· Al-Albani

Kathir ibn 'Ubayd said, "I visited 'A'isha, the Umm al-Mu'minin, may Allah be pleased with her. She said, 'Wait until I sew up my garment.' So I waited and said, 'Umm al-Mu'minin, when I go out, I will tell them that your enemy is miserliness.' She said, 'Look to your own business. There are no new clothes for anyone who does not wear shabby clothes.'"

حَدَّثَنَا حَرَمِيُّ بْنُ حَفْصٍ، قَالَ‏:‏ حَدَّثَنَا عَبْدُ الْوَاحِدِ، قَالَ‏:‏ حَدَّثَنَا سَعِيدُ بْنُ كَثِيرِ بْنِ عُبَيْدٍ قَالَ‏:‏ حَدَّثَنِي أَبِي قَالَ‏:‏ دَخَلْتُ عَلَى عَائِشَةَ أُمِّ الْمُؤْمِنِينَ رَضِيَ اللَّهُ عَنْهَا، فَقَالَتْ‏:‏ أَمْسِكْ حَتَّى أَخِيطَ نَقْبَتِي فَأَمْسَكْتُ فَقُلْتُ‏:‏ يَا أُمَّ الْمُؤْمِنِينَ، لَوْ خَرَجْتُ فَأَخْبَرْتُهُمْ لَعَدُّوهُ مِنْكِ بُخْلاً، قَالَتْ‏:‏ أَبْصِرْ شَأْنَكَ، إِنَّهُ لاَ جَدِيدَ لِمَنْ لاَ يَلْبَسُ الْخَلَقَ‏.‏

References2 variants
In-Book Reference
Book 26, Hadith 10
English Reference
Book 26, Hadith 471