Reciting Surah Faatihah to treat a person overcome by a state of insanity

If a person is overcome by a state of insanity, then one may treat him by reciting Surah Faatihah in the morning and evening for three days consecutively. Whenever one completes reciting the surah, one should blow on him.

عن خارجة بن الصلت التميمي، عن عمه، قال: أقبلنا من عند رسول الله صلى الله عليه وسلم، فأتينا على حي من العرب، فقالوا: إنا أنبئنا أنكم قد جئتم من عند هذا الرجل بخير، فهل عندكم من دواء أو رقية فإن عندنا معتوها في القيود؟ قال: فقلنا: نعم قال: فجاءوا بمعتوه في القيود، قال: فقرأت عليه فاتحة الكتاب ثلاثة أيام غدوة وعشية، كلما ختمتها أجمع بزاقي ثم أتفل فكأنما نشط من عقال (سنن أبي داود، الرقم: 3901)

Hazrat Khaarijah bin Salt (radhiyallahu ‘anhu) reports from his uncle: “We departed from the mubaarak company of Rasulullah (sallallahu ‘alaihi wasallam) and came to a certain tribe of the Arabs. They said (to us), ‘We were informed that you have come with some goodness from this person (referring to Rasulullah (sallallahu ‘alaihi wasallam)). Do you have any medication or treatment with you (to treat a person) as we have among us a person who is tied in chains due to being overcome by a state of insanity.’ We replied that we do have (something with us to treat him). He further says, ‘They then brought the affected person tied in chains. I then (while treating him) recited Surah Faatihah in the morning and evening for three days. Whenever I completed reciting the surah, I would gather my saliva and then blow (on him). Thereafter, his condition was as though he was unshackled from chains (i.e. he completely recovered from his condition).’”