Authentic
Muttafaq ‘alayh (Bukhari and Muslim) Sahih Muslim 2115
There should not remain any necklace of string or any other kind of necklace around the necks of camels without being cut
He was with the Messenger of Allah (may Allah's peace and blessings be upon him) on one of his journeys, and he sent a messenger ordering: "There should not remain any necklace of string or any other kind of necklace around the necks of camels without being cut."
وَالنَّاسُ فِي مَبِيتِهِمْ - " لاَ يَبْقَيَنَّ فِي رَقَبَةِ بَعِيرٍ قِلاَدَةٌ مِنْ وَتَرٍ أَوْ قِلاَدَةٌ إِلاَّ قُطِعَتْ "