11. The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj) - كتاب المناسك
19) Chapter: Regarding The Sacrificial Animal Being Unable To Continue Traveling Before Reaching Makkah
Narrated Najiyah al-Aslami:
The Messenger of Allah (ﷺ) sent sacrificial camels with him (as offering to the Ka'bah). He then said: If any one of them becomes fatigued, slaughter it, dip its shoes in its blood, and leave it for the people (to eat).