Al-Baqara 2:3

those who believe in the unseen, establish prayer[3], and spend out of what We[4] have provided for them,

[3] At its proper times and fulfill its all conditions. [4] "We" in reference to Allah in the Qur’anic verses is necessarily understood to denote grandeur and power.

Who believe in the unseen, establish prayer,[9] and spend out of what We[10] have provided for them,

[9] At its proper times and according to its specified conditions.
[10] It is to be noted that the reference of Allāh (Subḥānahu wa taʿālā) to Himself as "We" in many Qur’ānic verses is necessarily understood in the Arabic language to denote grandeur and power, as opposed to the more intimate singular form "I" used in specific instances.

3. Who believe in the Ghaib [1] and perform As-Salât (Iqâmat-as-Salât),[2] and spend out of what We have provided for them [i.e. give Zakât [3], spend on themselves, their parents, their children, their wives, etc., and also give charity to the poor and also in Allâh’s Cause - Jihâd].

[1] (V.2:3): Al-Ghaib: literally means a thing not seen. But this word includes vast meanings: Belief in Allâh, Angels, Holy Books, Allâh’s Messengers, Day of Resurrection and Al-Qadar (Divine Pre-ordainments). It also includes what Allâh and His Messenger صلى الله عليه وسلم informed about the knowledge of the matters of past, present, and future e.g., news about the creation of the heavens and earth, botanical and zoological life, the news about the nations of the past, and about Paradise and Hell.
[2] (V.2:3): Iqâmat-as-Salât إقامة الصلاة: The performance of Salât (prayers). It means that:
[3] (V.2:3) Zakât زكاة : A certain fixed proportion of the wealth and of each and every kind of property liable to Zakât of a Muslim to be paid yearly for the benefit of the poor in the Muslim community. The payment of Zakât is obligatory as it is one of the five pillars of Islâm. Zakât is the major economic means for establishing social justice and leading the Muslim society to prosperity and security. [See Sahih Al- Bukhâri, Vol. 2, Book of Zakât, No. 24]

Who believe in the Unseen, and establish worship, and spend of that We have bestowed upon them;