God says
Only they [truly] believe in Our messages who, whenever they are conveyed to them, fall down, prostrating themselves in adoration, and extol their Sustainer’s limitless glory and praise; and who are never filled with false pride; [and] who are impelled to rise [at night] to call out to their Sustainer in fear and hope; and who spend on others out of what We provide for them as sustenance. And [as for all such believers,] no human being can imagine what blissful delights, as yet hidden, await them [in the life to come]* as a reward for all that they did. -- Q.32:15-17
* The impossibility of man’s “imagining” paradise has been summed up by the Prophet in the well-authenticated Qudsi Tradition quoted by Bukhari, Muslim, Tirmizi and Ibn Majah, and narrated by Abu Hurairah: “God said : I have prepared for My righteous servants what no eye has seen, and no ear has heard, nor has it occurred to human heart.”
Say: my Lord enlarges and restricts the provision to whom He pleases but most men understand not [God’s ways] . It is not your wealth nor your sons that will bring you nearer to Us in degree: but only those who believe and work righteousness – these are the ones for whom there is a multiple reward for their deeds; and it is they who shall dwell secure in the mansions [of paradise]. -- Q.34:36,37
Prophet said
1. “Live in this world as if you are a stranger or in transit, and count yourself as one of the inmates of graves” -- H: Bukhari. N: Ibn Omar.
2. “Whoever’s intention is to seek the next world, God creates contentment in his heart and collects vitues from him, and the world comes to him while he turns away (from it)…” – H: Tirmizi and Ahmed. N: Anas.