Fatiha – Making sense of the conundrum
Fatiha is nothing but a compendium of various virtuous acts. It consists of feeding others, recitation of the Holy Quran and the reward is gifted to others (Isaal-e-Sawab). The Hadith describe the excellence of these acts. For this reason, Fatiha itself is Mustahab (commendable) as well as Mustahsan (established by the Sunnah). On the occasion of the Battle of the Trench (Ghazwa-e-Khandaq), the Holy Prophet (Sallallahu alaihi wa sallam) said a prayer when the food was placed before Him. The whole Hadith is in Sahih Bukhari. Please look at a part of the Hadith:
Translation of Hadith: The wife of Hadhrat Jabir (May Allah be well pleased with them) presented kneaded flour to the Holy Prophet (Sallallahu alaihi wa sallam). The Holy Prophet (Sallallahu alaihi wa sallam) put His blessed saliva in it and said a prayer for Barakah (blessings). Then He (Sallallahu alaihi wa sallam) again put His blessed saliva and said a prayer. (Sahih Bukhari, Vol. 2, Hadith No. 3793)
There is a Hadith in Sunan Nasai, Jame' Tirmidhi, Sunan Abu Dawood, Shu'abul Iman Lil Baihaqui, Musnad 'Abd Bin Humaid, Al Jame' Ul Kabeer Lis Suyuti and Ma'arifatis Companions Li Abi Nu'aim, etc.:
Translation of Hadith: Hadhrat Mua'dh Bin Jabal (May Allah be well pleased with him) narrates on the authority of his father: …………………The Holy Prophet (Sallallahu alaihi wa sallam) said: Recite the Surah "Qul Huwallahu Ahad," "Qul A'udhu Bi Rabbil Falaq," and "Qul A'udhu Bi Rabbin Naas" thrice (i.e. 3 times) every morning and evening. It will save you from everything.
Sunan Nasai, Hadith No. 5445
Jame' Tirmidhi, Hadith No. 3924
Musnad Iman Ahmed bin Hambal, Hadith No. 23332
Shu'abul Iman Lil Baihaqui, Hadith No. 2467
Musnad 'Abd Bin Humaid, Hadith No. 496
Al Jame' Ul Kabeer Lis Suyuti, Hadith No. 375
Ma'arifatis Companions Li Abi Nu'aim, Hadith No. 2267