for religious correctness

What did the Prophet Muhammad (saw) say about slaughtering sacrifices on the Day of Nahr?
 Narrated Jundab bin Sufyan Al-Bajali:                     I witnessed the Prophet on the Day of Nahr. He said, "Whoever slaughtered the sacrifice before offering the `Id prayer, should slaughter another sacrifice in its place; and whoever has not slaughtered their sacrifice yet, should slaughter now."