The Messenger of Allah ﷺ said, "No deed performed by a human being on the Day of Sacrifice is more beloved to Allah than the shedding of blood. The sacrificed animal will come on the Day of Resurrection with its horns, hair, and hooves, and the blood is accepted by Allah before it even falls to the ground. So make your hearts content with it."
حدثنا أبو عمرو مسلم بن عمرو بن مسلم الحذاء المدني حدثنا عبد الله بن نافع الصائغ أبو محمد عن أبي المثنى عن هشام بن عروة عن أبيه
أن رسول الله ﷺ قال ما عمل آدمي من عمل يوم النحر أحب إلى الله من إهراق الدم إنها لتأتي يوم القيامة بقرونها وأشعارها وأظلافها وأن الدم ليقع من الله بمكان قبل أن يقع من الأرض فطيبوا بها نفسا
Commentary, its chain of transmission is daif. Ibn Majah also narrated it in the Book of Sacrifices, in the chapter on the reward of udhiya, hadith no. 3126, from the hadith of Abdullah bin Nafi, with similar wording.Abu Muthanna is daif, as stated in At-Taqrib and other works.On this subject there is also a report from Imran bin Husayn [Hakim 4/222] and from Zayd bin Arqam [Ibn Majah, no. 3127].The hadith, "For its owner, for every hair, a good deed," was narrated by Ibn Majah, no. 3127, and its chain of transmission is very daif.