I think he said (these words) when the people were at the places of rest: No necklace of strings be left on the necks of the camels or the necklace kept unbroken. Imam Malik said: To my mind (this practice) of wearing necklace round the necks of camels or animals was because of the fact that they (wanted to save them) from the influence of the evil eye.  

أَخْبَرَهُ أَنَّهُ كَانَ مَعَ رَسُولِ اللَّهِ ﷺ فِي بَعْضِ أَسْفَارِهِ قَالَ فَأَرْسَلَ رَسُولُ اللَّهِ ﷺ رَسُولاً قَالَ عَبْدُ اللَّهِ بْنُ أَبِي بَكْرٍ حَسِبْتُ أَنَّهُ قَالَ وَالنَّاسُ فِي مَبِيتِهِمْ لاَ يَبْقَيَنَّ فِي رَقَبَةِ بَعِيرٍ قِلاَدَةٌ مِنْ وَتَرٍ أَوْ قِلاَدَةٌ إِلاَّ قُطِعَتْ قَالَ مَالِكٌ أُرَى ذَلِكَ مِنَ الْعَيْنِ