The Messenger of Allah (SWAS) prohibited taking the find of pilgrims. Ibn Wahb said : One should leave the find of a pilgrim till its owner finds it.
أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ لُقَطَةِ الْحَاجِّ قَالَ أَحْمَدُ قَالَ ابْنُ وَهْبٍ يَعْنِي فِي لُقَطَةِ الْحَاجِّ يَتْرُكُهَا حَتَّى يَجِدَهَا صَاحِبُهَا قَالَ ابْنُ مَوْهَبٍ عَنْ عَمْرٍو