Narrated by:Abu Hurairah said
It was narrated that Abu Hurairah said:"I saw the Prophet carrying Hasan bin 'Ali on his shoulder, and his saliva was dripping down on him."
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، عَنْ حَمَّادِ بْنِ سَلَمَةَ، عَنْ مُحَمَّدِ بْنِ زِيَادٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ رَأَيْتُ النَّبِيَّ ـ صلى الله عليه وسلم ـ حَامِلَ الْحُسَيْنِ بْنِ عَلِيٍّ عَلَى عَاتِقِهِ وَلُعَابُهُ يَسِيلُ عَلَيْهِ .
IbnMaja
The Book of Purification and its Sunnah • Hadith 658