The Book of Prayer - Friday
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَيَعْقُوبُ الدَّوْرَقِيُّ، عَنِ ابْنِ عُلَيَّةَ، عَنْ أَيُّوبَ، عَنْ عَمْرٍو، عَنْ جَابِرٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم كَمَا قَالَ حَمَّادٌ وَلَمْ يَذْكُرِ الرَّكْعَتَيْنِ .This hadith is narrated by Jabir through another chain of transmitters but Hammad (one of the narrators) made no mention of the two rak'ahs
From Sahih Muslim, whose reports the scholars accept as authentic.