The Book of Greetings
وَحَدَّثَنِيهِ إِسْمَاعِيلُ بْنُ سَالِمٍ، أَخْبَرَنَا هُشَيْمٌ، أَخْبَرَنَا سَيَّارٌ، بِهَذَا الإِسْنَادِ .This hadith has been narrated on the authority of Sayyar with the same chain of transmitters
From Sahih Muslim, whose reports the scholars accept as authentic.