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abudawud:644 – Muḥammad b. ʿĪsá b. al-Ṭabbāʿ > Ḥajjāj > Ibn Jurayj

This (practice of ‘Ata’) weakens the tradition (narrated by Abu Hurairah).  

أبو داود:٦٤٤ – حَدَّثَنَا مُحَمَّدُ بْنُ عِيسَى بْنِ الطَّبَّاعِ حَدَّثَنَا حَجَّاجٌ عَنِ ابْنِ جُرَيْجٍ قَالَ

أَكْثَرُ مَا رَأَيْتُ عَطَاءً يُصَلِّي سَادِلاً  

قَالَ أَبُو دَاوُدَ وَهَذَا يُضَعِّفُ ذَلِكَ الْحَدِيثَ