Is it necessary for the pilgrim to offer the sacrifice himself, or is it permissible for his family to offer it on his behalf in his home country?

Scholars have differed regarding the permissibility of the udhiyah (sacrificial animal) for the pilgrim, but the correct view is that it is permissible for him just as it is for others. The pilgrim may slaughter his udhiyah himself or appoint someone to slaughter it on his behalf in his own country or elsewhere.