Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad-zuhd:2015ʿAbdullāh > ʿUthmān b. Abū Shaybah > Abū Bakr b. ʿAyyāsh > Mughīrah

[Machine] Indeed, Uwais al-Qarni used to give charity with his own clothes, to the extent that he would sit naked because he couldn't find anything to cover himself until Friday.  

الزهد لأحمد:٢٠١٥حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي عُثْمَانُ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ عَنْ مُغِيرَةَ قَالَ

«إِنَّ أُوَيْسًا الْقَرَنِيَّ لَيَتَصَدَّقُ بِثِيَابِهِ حَتَّى يَجْلِسَ عُرْيَانًا لَا يَجِدُ مَا يَرُوحُ فِيهِ إِلَى الْجُمُعَةِ»