What is the source of firasat amals?

According to the site http://www.ruqyashariyah.org , the following amal should be done to be given inspiration on certain matters/causes of problems, which should be recited before going to sleep:: (1) Istighfar 3x (2) Fatihah 1x (3) Ayat Qursi 1x (4) Al-Imran: 26-27 1x (5) A-Baqarah: 285-286 1x (6) Salawat 21x (7) Al-Jinn: 1-5 21x (8) Al-Kauthar 11x (9) Salawat 21x (10) Ameen My question is, where is this amal from? Is this something our prophet taught us? If yes, then it must be recorded in some hadith? If no, is it right for scholars/raqis/imaams to create new quranic ayat combinations like this? For example, I am fairly sure that I have read a hadith somewhere which says that the 3 qul in the quran are medicine for protection from jin or the evil eye. Fair enough, we know that our prophet used this medicine himself. But what about this firasat amal?