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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:2423 – ʿAbd al-Malik b. Shuʿayb > Ibn Wahb > al-Layth > Ibn Shihāb

When it was mentioned to Ibn Shihab (al-Zuhri) that fasting on Saturday had been prohibited, he would say: This is a Himsi tradition.  

أبو داود:٢٤٢٣ – حَدَّثَنَا عَبْدُ الْمَلِكِ بْنُ شُعَيْبٍ حَدَّثَنَا ابْنُ وَهْبٍ قَالَ سَمِعْتُ اللَّيْثَ يُحَدِّثُ عَنِ ابْنِ شِهَابٍ أَنَّهُ كَانَ إِذَا ذُكِرَ لَهُ أَنَّهُ نُهِيَ

عَنْ صِيَامِ يَوْمِ السَّبْتِ يَقُولُ ابْنُ شِهَابٍ هَذَا حَدِيثٌ حِمْصِيٌّ