Shaykh Abdul-Muhsin Al-Abbaad was asked:
The one who slaughters the animal for the Aqeeqah before the seventh day, does it count for him?
“What is apparent is that it counts for him because slaughtering on the seventh day is not obligatory, but only recommended”.
[Sharh Sunan Abi Dawood no. 334]
Faisal Ibn Abdul Qaadir Ibn Hassan