(Repeat for verse 19) Do not move-O Prophet- by the Qur'an your tongue at the time of the descent of the revelation; for the sake of that you seek haste with its preservation, out of fear that it escapes from you. Indeed upon Us is its gathering in your chest, then that you read it with your tongue whenever you wished. Then when our messenger Gabriel read it upon you then listen for his reading and keep silent for him, then read it as he made you read it, then indeed upon Us is the clarification of what was difficult for you its understanding from its meanings and its rulings.