Reference: I’laam al-Mu’aasireen bi-Fataawa Ibn ‘Uthaymeen – Page 191
Question: If I carried out the sacrifice on the 21st day, will it be considered as the ‘aqeeqah [sacrifice]?
Response: Yes, it will be considered as the ‘aqeeqah [sacrifice], since I have said there is no harm in that. However, the specified time is [stipulated] from the aspect of that which is [recommend and therefore] best.
