‘Abd Allaah bin ‘Umar said “The Apostle of Allaah ﷺ prohibited to travel with a copy of the Qur’an to the enemy territory. The narrator Malik said “(It is) I think lest the enemy should take it.  

نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يُسَافَرَ بِالْقُرْآنِ إِلَى أَرْضِ الْعَدُوِّ قَالَ مَالِكٌ أُرَاهُ مَخَافَةَ أَنْ يَنَالَهُ الْعَدُوُّ