The Prophet ﷺ said, "I have been commanded to observe the Day of Sacrifice as a festival, which Allah has appointed for this nation."A man asked, "What if I can find nothing but a female animal that has been lent to me for its milk, may I sacrifice it?"The Prophet ﷺ replied, "No, but you may trim your hair, clip your nails, shorten your moustache, and shave your pubic hair. That will count as your complete sacrifice with Allah
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أن النبي ﷺ قال: أمرت بيوم الأضحى عيدا جعله الله عز وجل لهذه الأمة قال الرجل أرأيت إن لم أجد إلا منيحة أنثى أفأضحي بها؟ قال: لا، ولكن تأخذ من شعرك وأظفارك، وتقص شاربك، وتحلق عانتك، فتلك تمام أضحيتك عند الله عز وجل.
Ahmad reported it — Abu Dawud (2789), Nasai (4365), Imam Ahmad (6575), Ibn Hibban (5914), and Hakim (4/223) — through the route of Saeed bin Abu Ayub, who said, Ayyash bin Abbas Qutbani told me, from Isa bin Hilal Sadafi, from Abdullah bin Amr bin As, and he related it.Its chain of transmission is hasan because of Isa bin Hilal, for a number of narrators transmitted from him, and Ibn Hibban mentioned him among the trustworthy narrators in Thiqat (5/213). Fasawi likewise mentioned him in his Tarikh (2/515) among the trustworthy narrators from the Followers who belonged to the people of Egypt. The rest of its narrators are trustworthy. Hakim said, "Its chain of transmission is sahih."As for the loan-animal (manihah), it is a milking ewe lent out so that its milk may be used, after which it is returned to its owner. This is how it appears in the versions of Abu Dawud, Nasai, Ibn Hibban, and Hakim, "a female loan-animal," which serves as evidence for those who hold that a loan-animal may also be male, in which case the benefit derived from it would be its wool and fur. In the version of Ahmad it appears as "the loan-animal of my son," while in some sources it appears as "the loan-animal of my father" and "the ewe of my son and my family and their loan-animal."