Qur'an (Urdu translation) is the best.

Surah Al-Kahf, the 18th chapter of the Quran, tells the story of the People of the Cave, a group of young believers who lived during the reign of a tyrannical king. When their faith was discovered, they were persecuted and forced to flee. Allah guided them to a cave where they took refuge, and He put them into a deep sleep, protecting them from harm. The believers slept for 309 years, unaware of the passage of time. When they awoke, they were amazed to find that the world outside had changed, and the people had become more faithful. The story of the People of the Cave serves as a reminder of Allah's power, protection, and mercy, and the importance of perseverance and faith in the face of adversity.