(72) باب صِحَّةِ حَجِّ الصَّبِيِّ وَأَجْرِ مَنْ حَجَّ بِهِ
Karaib reported:
A woman lifted a child and said: Messenger of Allah, would he be credited with Hajj? He said: Yes. and for you there would be a reward.
Reference: Sahih Muslim 1336 c
In-book reference: Book 15, Hadith 459
USC-MSA web (English) reference(deprecated numbering scheme): Book 7, Hadith 3093