Hadith 1:98
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).
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَزُهَيْرُ بْنُ حَرْبٍ، قَالاَ حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ وَلَمْ يَذْكُرْ " رَأْسُ الْكُفْرِ قِبَلَ الْمَشْرِقِ "
Original Reference: Sahih Muslim 52 j