So the best reward is the Paradise...
So the best reward is the Paradise, and more is what he is rewarded here in the world. Or he works purely for the next world. (For him) Allah expiates every sin with good deed. He, Most High, says: 'Surely, the good deeds will wipe out the evil deeds, and that is a reminder for those who remember.' (11:114). Till on the Day of Judgement, when all his good deeds will be counted, and Allah will reward him ten fold to seven hundred fold for every single act.
Allah, Most High, says: 'A reward from your Lord, a sufficient gift' (78:36), 'To those who will be meted out the double reward, and they shall be secure in the lofty chambers.' (34:37) So be desirous of this, may Allah have mercy on you, and work (hard) for it, and urge each other to do accordingly. And be it known to you all, O, slaves of Allah! Those fearing Allah and mindful of their duties to Him, have gained both, the instant good (of this world) and the promised good (of hereafter).
They share with the people of this world in their worldly gain, for Allah has made it legitimate for them that which is necessary from this life, and thus made them content; as Allah, Most High, says (in Qur'an): 'Say, who has forbidden Allah's finery which He fashioned for His servants, or the good things He provided? Say: These are meant in the present world, for those who believe, and exclusively for them on the Day of Resurrection.
Thus We make clear our revelations for a people who know.' (7:32). They lived on earth the best life and ate from it its best. They shared with the people of the world in their worldly bounties, eating with them the best of what they ate, drinking with them the best of what they drank, wearing the best of their attire, lived with them in the best of abodes. They married in the happiest way as they all did, and rode on the best means of transport as they did.
Thus, they availed of the pleasures of this world with the worldly people, and at the same time, they will be in the proximity of Allah tomorrow! They will wish, and He will grant them their wish, and will not refuse them their prayers and not reduce their share in the (eternal) bliss; O servants of Allah! It is this end that the people of wisdom crave, and work for it by adopting Taqwa. And there is no might nor any strength but that from Allah! O servants of Allah!