The Messenger of Allah (may Allah’s peace and blessings be upon him) forbade traveling with the Qur’an to the land of enemies

‘Abdullāh ibn ‘Umar (may Allah be pleased with him) reported that the Messenger of Allah (may Allah’s peace and blessings be upon him) forbade traveling with the Qur’an to the land of enemies.
Authentic hadith - Narrated by Bukhari & Muslim

The Prophet (may Allah's peace and blessings be upon him) forbade taking the Qur’an along when traveling to a land of disbelief, where people do not believe in Islam, lest they might profane it. If it is most likely safe there, it is allowed to take it then.

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