Sahih Muslim · Hadith 4946

حدثنا يحيى بن يحيى، قال قرأت على مالك عن نافع، عن عبد الله بن عمر، قال نهى رسول الله صلى الله عليه وسلم أن يسافر بالقرآن إلى أرض العدو ‏.‏

It has been narrated on the authority of Ibn 'Umar who said: The Messenger of Allah (may peace be upon him) forbade that one should travel to the land of the enemy taking the Qur'an with him.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).