Reading the Qur'an While Lying on a Bed
Question:
While I am lying down ready to go to sleep, may I read the Qur'an?
Answer:
Yes, it is allowed for one to recite while lying on a bed except while Junub (in a state of sexual impurity), in which case he may not recite from the Qur'an until having performed Ghusl.
Shaykh Muhammad bin Saalih al-`Uthaymeen
Fatawa Islamiyah Darussalam Vol:7 no.61
