Al-Kāfi - Volume 1 > Manners of the Imams in the Matters of Food and Clothes as Leaders with Divine Authority
Hadith #4

4ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ الْبَرْقِيِّ عَنْ أَبِيهِ عَنْ مُحَمَّدِ بْنِ يَحْيَى الْخَزَّازِ عَنْ حَمَّادِ بْنِ عُثْمَانَ قَالَ حَضَرْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلام) وَقَالَ لَهُ رَجُلٌ أَصْلَحَكَ الله ذَكَرْتَ أَنَّ عَلِيَّ بْنَ أَبِي طَالِبٍ (عَلَيْهِ السَّلام) كَانَ يَلْبَسُ الْخَشِنَ يَلْبَسُ الْقَمِيصَ بِأَرْبَعَةِ دَرَاهِمَ وَمَا أَشْبَهَ ذَلِكَ وَنَرَى عَلَيْكَ اللِّبَاسَ الْجَدِيدَ فَقَالَ لَهُ إِنَّ عَلِيَّ بْنَ أَبِي طَالِبٍ (عَلَيْهِ السَّلام) كَانَ يَلْبَسُ ذَلِكَ فِي زَمَانٍ لا يُنْكَرُ عَلَيْهِ وَلَوْ لَبِسَ مِثْلَ ذَلِكَ الْيَوْمَ شُهِرَ بِهِ فَخَيْرُ لِبَاسِ كُلِّ زَمَانٍ لِبَاسُ أَهْلِهِ غَيْرَ أَنَّ قَائِمَنَا أَهْلَ الْبَيْتِ (عَلَيْهم السَّلام) إِذَا قَامَ لَبِسَ ثِيَابَ علي (عَلَيْهِ السَّلام) وَسَارَ بِسِيرَةِ عَلِيٍّ (عَلَيْهِ السَّلام )

4. A number of our people has narrated from Ahmad ibn Muhammad al-Barqi from his fatherfm Muhammad ibn Yahya al-Khazzaz from Hammad ibn ‘Uthman who has said the following. “I was in the presence of abu ‘Abdallah (a.s.) that a man said to him, “May Allah grant you well being, you have mentioned that Ali ibn abu Talib (a.s.) would wear harsh garments. He would buy a shirt worth four Dirhams only and so on. However, we see that you have new garments.” The Imam (a.s.) said, “Ali ibn abu Talib (a.s.) would do so at a time when people would dislike it. Wearing such garments to day would have defamed him. The best garment for a given time is the garment that people of that time would use. However, when our Al-Qa’im will rise with Divine Authority, he will wear the kind of garment that Ali (a.s.) did and he will live just as Ali (a.s.) lived.”