(72) باب صِحَّةِ حَجِّ الصَّبِيِّ وَأَجْرِ مَنْ حَجَّ بِهِ
A hadith like this has been narrated on the authority of Ibn 'Abbas through another chain of transmitters.
Reference: Sahih Muslim 1336 d
In-book reference: Book 15, Hadith 460
USC-MSA web (English) reference(deprecated numbering scheme): Book 7, Hadith 3094