I am a doctor and whenever I examine my patents, I recite the prescribed ruqya on them secretly without letting them hear me. I often recite ayat al-Kursi and then blow on the effected part, or say the supplication: “O Allah! The Lord of the people, the remover of trouble! Cure this patient, for You are the Healer. None brings about healing but You; a healing that will leave behind no ailment.” My question is: Do I need to recite it audibly? هل تكون الرقية سرا أو جهرا؟