Arabic (Original)
حَدَّثَنَا أَبُو عَاصِمٍ قَالَ حَدَّثَنَا ثَوْرٌ عَنْ خَالِدِ بْنِ مَعْدَانَ عَنْ عَبْدِ اللَّهِ بْنِ بُسْرٍ عَنْ أُخْتِهِ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا تَصُومُوا يَوْمَ السَّبْتِ إِلَّا مَا افْتُرِضَ عَلَيْكُمْ فَإِنْ لَمْ يَجِدْ أَحَدُكُمْ إِلَّا عُودَ عِنَبٍ أَوْ لِحَى شَجَرَةٍ فَلْيَمْضُغْهَا.
English Translation
Abu 'Asim narrated to us, he said: Thawr narrated to us, from Khalid ibn Ma'dan, from 'Abdullah ibn Busr, from his sister, that the Messenger of Allah, peace and blessings be upon him, said: Do not fast on Saturday except in what has been made obligatory upon you; and if one of you finds nothing but a grape-vine stick or the bark of a tree, let him chew it (to break the appearance of fasting).