"O Allah, place light in my heart, light in my tongue, light in my hearing, light in my sight, light above me, light beneath me, light on my right, light on my left, light before me, and light behind me. Place light in my soul, magnify light for me, increase light for me, make light for me, and make me a light. O Allah, grant me light. Place light in my sinews, in my flesh, in my blood, in my hair, and in my skin."

[al-Bukhari 6316; Muslim 1788, 1794, 1797, 1799]