I witnessed the Prophet ﷺ on the Day of Nahr. He said, "Whoever slaughtered the sacrifice before offering the ʿId prayer, should slaughter another sacrifice in its place; and whoever has not slaughtered their sacrifice yet, should slaughter now."

شَهِدْتُ النَّبِيَّ ﷺ يَوْمَ النَّحْرِ فَقَالَ مَنْ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيُعِدْ مَكَانَهَا أُخْرَى وَمَنْ لَمْ يَذْبَحْ فَلْيَذْبَحْ

On the day of Nahr the Prophet ﷺ offered the prayer and delivered the Khutba and then slaughtered the sacrifice and said, "Anybody who slaughtered (his sacrifice) before the prayer should slaughter another animal in lieu of it, and the one who has not yet slaughtered should slaughter the sacrifice mentioning Allah's name on it."

صَلَّى النَّبِيُّ ﷺ يَوْمَ النَّحْرِ ثُمَّ خَطَبَ ثُمَّ ذَبَحَ فَقَالَ مَنْ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيَذْبَحْ أُخْرَى مَكَانَهَا وَمَنْ لَمْ يَذْبَحْ فَلْيَذْبَحْ بِاسْمِ اللَّهِ

I saw Messenger of Allah ﷺ observing ('Id) prayer on the Day of Sacrifice (10th of Dhu'l-Hijja) and then delivering a sermon and he said: He who sacrificed the (animal) before offering ('Id) prayer, he should offer again in its stead, and he who did not sacrifice the animal should slaughter it by reciting the name of Allah.

شَهِدْتُ رَسُولَ اللَّهِ ﷺ صَلَّى يَوْمَ أَضْحًى ثُمَّ خَطَبَ فَقَالَ مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيُعِدْ مَكَانَهَا وَمَنْ لَمْ يَكُنْ ذَبَحَ فَلْيَذْبَحْ بِاسْمِ اللَّهِ

[AI] He witnessed the Messenger of Allah ﷺ pray, then deliver a sermon and say: "Whoever slaughtered before we prayed, let him replace it with another in its place." And he would sometimes say: "Let him replace it with another." "And whoever has not slaughtered, let him slaughter in the name of Allah ﷻ."

أَنَّهُ شَهِدَ رَسُولَ اللهِ ﷺ صَلَّى، ثُمَّ خَطَبَ فَقَالَ: «مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ نُصَلِّيَ، فَلْيُعِدْ مَكَانَهَا أُخْرَى». وَرُبَّمَا قَالَ: «فَلْيُعِدْ أُخْرَى». «وَمَنْ لَا، فَلْيَذْبَحْ عَلَى اسْمِ اللهِ ﷻ».

I saw Messenger of Allah ﷺ observing ('Id) prayer on the Day of Sacrifice (10th of Dhu'l-Hijja) and then delivering a sermon and he said: He who sacrificed the (animal) before offering ('Id) prayer, he should offer again in its stead, and he who did not sacrifice the animal should slaughter it by reciting the name of Allah. (Using translation from Muslim 1960d)

أَنَّهُ شَهِدَ رَسُولَ اللهِ ﷺ صَلَّى ثُمَّ خَطَبَ فَقَالَ مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيُعِدْ مَكَانَهَا أُخْرَى وَقَالَ مَرَّةً أُخْرَى فَلْيَذْبَحْ وَمَنْ كَانَ لَمْ يَذْبَحْ فَلْيَذْبَحْ بِاسْمِاللهِ

[Machine] I heard Jundub saying, "I witnessed the Prophet ﷺ and then he delivered a sermon and said, 'Whoever has slaughtered a sacrifice before offering prayers, then let him slaughter again and replace it in its place. And whoever has not slaughtered, then let him slaughter in the name of Allah.'"

سَمِعْتُ جُنْدُبًا يَقُولُ شَهِدْتُ النَّبِيَّ ﷺ ثُمَّ خَطَبَ فَقَالَ «مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيَذْبَحْ وَلْيُبْدِلْ مَكَانَهَا وَمَنْ لَمْ يَكُنْ ذَبَحَ فَلْيَذْبَحْ بِاسْمِ اللهِ»

[Machine] The Prophet ﷺ prayed and then said, "Whoever has slaughtered their sacrifice before the prayer, let them slaughter another one in its place. And whoever has not slaughtered, let them slaughter in the name of Allah."

صَلَّى رَسُولُ اللهِ ﷺ فَقَالَ «مَنْ كَانَ ذَبَحَ أُضْحِيَّتَهُ قَبْلَ الصَّلَاةِ فَلْيَذْبَحْ مَكَانَهَا أُخْرَى وَمَنْ لَمْ يَذْبَحْ فَلْيَذْبَحْ بِاسْمِ اللهْ»

"مَنْ كان ذبَحَ أُضْحِيَتهُ قبْل أَنْ يُصَلِّيَ، فليَذْبَحْ مَكانَها أُخْرَى، وَمَنْ لمْ يَكُنْ ذبَحَ فليَذْبَحْ بِاسْمِ اللهِ".