In the name of Allah, Most Gracious, Most Merciful.
Some of the scholars of tafseer say that if you look at the Mahajirouns, the ones who emigrated from Mecca to Medina; later on every one of them became a leader of a state or an emir of an army. So Allah gave them a better status in this world then what they had in Mecca. That is in this world; in the hereafter the reward is even greater.
The scholars also say that: “Whoever leaves something for the sake of Allah, Allah will give that person something better.”