3. Those who believe without seeing (13), and establish (14) prayer and spend in Our path, out of Our provided sustenance, (15)
13. The unseen is that which is beyond one's sensory and extemporary perceptions. The unseen is of two types:
1. That for which no proof should be established - this is known as the personal knowledge of the unseen.
2. That for which proofs/guidelines are provided. This is knowledge of the unseen which is bestowed or granted. The first type for which no proof is required refers to the
Absolute knowledge of Allah. No one has any share of this, while the second type is granted by Allah to His special servants. Regarding this first type, Allah says in the QUR'AAN: "And with Him is the keys of the unseen. He only knows them" (S36: V 59).
In respect of the second category, proof is provided in several verses. Allah says: "He reveals not His secrets except to His Chosen Messenger" (S72 V26-27). In this verse, reference is made to the second group - knowledge regarding Personality and Attributes of Allah, Prophethood. Qiyamah, etc. Thus, without acceptance of the unseen Imaan cannot be complete, because true Imaan is belief in the above mentioned things. Belief is not possible without knowledge. Furthermore, true Imaan is implicit faith in the Prophet صلى الله عليه وآله وسلم . Thus, believing in Allah and Qiyamah, etc. after seeing them will be contrary to the faith in the unseen.
14. By "Establish Prayers" means to performing Salaah regularly, on its prescribed times and according to its proper method. This means the true excellence lies not in mere performance of Salaah but in establishing it as a Principle of Deen. From this verse one learns that Salaah supersedes all other forms of worships (IBAADAAT) and that one should also perform Fard. Wajib and Sunnat prayers regularly with absolute sincerity and humility.
15. This infers that not the entire wealth should be spent aimlessly, some should be given in the way of Allah and some should be spent on oneself and one's family. A detailed explanation of this is found in Ahadith From Holy Prophet.
RAZAQNA one can infer that only lawfully earned wealth should be given in Allah's way. As Allah says in the QUR'AAN: "You shall not attain good unless you spend your favourite things" (S3: V 92). Furthermore, one should not only spend once but it should be a continuous practice. Compulsory charity or Zakaat is given once per year, but Nafl Charity can be given whenever one desires. Zakaat too, should be calculated strictly but its amount could be paid little at a time. In short, for all pious works, as they are all included in "spending in the way of Allah". It is also be an appropriate way of conveying reward of virtuous deeds to the departed souls.