It is also narrated that a camel suffices for ten separate individuals, and if sacrificial animals are scarce, a single sheep suffices for seventy people. Regarding the eligibility of sacrificial animals: Only a camel that has completed five years and entered its sixth year is acceptable. From goats and cows, a two-year-old (having completed one year and entered the second) is acceptable. From sheep, a one-year-old lamb is acceptable.
Commentary #2