The Book of Faith
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَزُهَيْرُ بْنُ حَرْبٍ، قَالاَ حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ وَلَمْ يَذْكُرْ " رَأْسُ الْكُفْرِ قِبَلَ الْمَشْرِقِ " .Qutaiba b. Sa'id and Zubair b. Harb say:Jarir narrated this on the authority of A'mash with the same chain of narrators (as mentioned above)
From Sahih Muslim, whose reports the scholars accept as authentic.