He who has a sacrificial animal with him whom (he intends) to offer as sacrifice, and he enters the month of Dhu'I-Hijja, he should not get his hair cut or nails trimmed until he has sacrificed the animal.
سَمِعْتُ أُمَّ سَلَمَةَ زَوْجَ النَّبِيِّ ﷺ تَقُولُ قَالَ رَسُولُ اللَّهِ ﷺ مَنْ كَانَ لَهُ ذِبْحٌ يَذْبَحُهُ فَإِذَا أُهِلَّ هِلاَلُ ذِي الْحِجَّةِ فَلاَ يَأْخُذَنَّ مِنْ شَعْرِهِ وَلاَ مِنْ أَظْفَارِهِ شَيْئًا حَتَّى يُضَحِّيَ
The Prophet ﷺ as saying: If anyone has sacrificial animal and intends to sacrifice it, and he sights the new moon of Dhul-Hajjah, he must not take any of his hair and nails until he sacrifices Abu Dawud said: The name of 'Amr b. Muslim in the chain narrated by Malik and Muhammad b. 'Amr is disputed. Some say that it is 'Umar and the majority holds that it is 'Amr. Abu Dawud said: He is 'Amr b. Muslim b. Ukaimah al-Laithi al-Jundu'i.
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ كَانَ لَهُ ذِبْحٌ يَذْبَحُهُ فَإِذَا أَهَلَّ هِلاَلُ ذِي الْحِجَّةِ فَلاَ يَأْخُذَنَّ مِنْ شَعْرِهِ وَلاَ مِنْ أَظْفَارِهِ شَيْئًا حَتَّى يُضَحِّيَ
He who has a sacrificial animal with him whom (he intends) to offer as sacrifice, and he enters the month of Dhu'I-Hijja, he should not get his hair cut or nails trimmed until he has sacrificed the animal. (Using translation from Muslim 1977g)
قَالَ رَسُولُ اللَّهِ ﷺ «مَنْ كَانَ لَهُ ذِبْحٌ يَذْبَحُهُ فَإِذَا أَهَلَّ هِلَالُ ذِي الْحِجَّةِ فَلَا يَأْخُذْ مِنْ شَعْرِهِ وَلَا مِنْ أَظْفَارِهِ حَتَّى يُضَحِّيَ»
[Machine] The Messenger of Allah ﷺ said, "Whoever has an animal that he wants to slaughter, then when the crescent of Dhul Hijjah appears, he should not touch any of his hair or nails until it is slaughtered."
قَالَ رَسُولُ اللهِ ﷺ «مَنْ كَانَ لَهُ ذِبْحٌ يُرِيدُ أَنْ يَذْبَحُهُ فَإِذَا أَهَلَّ هِلَالُ ذِي الْحِجَّةِ فَلَا يَمَسَّ مِنْ شَعْرِهِ وَلَا مِنْ أَظْفَارِهِ شَيْئًا حَتَّى يُذْبَحَ»
"مَنْ كَانَ لَهُ ذِبْحٌ يَذْبَحُهُ، فإِذا أَهَلَّ هِلالُ ذِي الحِجَّةِ، فَلا يأخُذَنَّ مِنْ شَعْرهِ وَلا مِنْ أَظْفارِه شيئًا حَتَّى يُضَحِّي".