Hadith 401
من اسرج فى مسجد سراجا لم تزل الملائكة وحملة العرش يستغفرون له ما دام فى ذالك المسجد ضوء من ذالك السراج
"Whoever lights a lamp in a mosque, the common angels and the angels who bear the Throne continue to seek forgiveness for him as long as the light of that lamp remains in the mosque."
