Aishah RA narrates that Rasulullah SAW said:
"There is nothing dearer to Allah during the days of Qurbani than the sacrificing of animals. The sacrificed animal shall come on the Day of Qiyamah with its horns, hair and hoofs. The blood of the sacrificed animal is accepted by Allah before it reaches the ground. Therefore sacrifice with an open heart."
Zaid bin Arqam RArelates that the companions of Rasulullah SAW asked:
"O Messenger of Allah! (SAW) What is Qurban?"
He (SAW) replied:
"It is the Sunnat of your father Ibrahim (AS)."
They asked again:
"What benefit do we derive from it?"
He (SAW) answered:
" A reward for every hair of the sacrificed animals."
(and then they asked:)
"And what about the wool?"
(the Prophet SAW answered:)
"A reward," he said, "for every fibre of the wool."