The Book of Pilgrimage
وَحَدَّثَنَاهُ أَبُو الرَّبِيعِ الزَّهْرَانِيُّ، حَدَّثَنَا حَمَّادٌ، عَنْ عَمْرٍو، بِهَذَا الإِسْنَادِ نَحْوَهُ .A hadith like this has been narrated by 'Amr on the authority of the same chain of transmitters
From Sahih Muslim, whose reports the scholars accept as authentic.