﴿ سَيَهْدِيهِمْ وَيُصْلِحُ بَالَهُمْ ﴾

“He will guide them [in the hereafter as well], and will set their hearts at rest,”

(He will guide them) He will give them success to perform righteous deeds (and improve their state) and improve their condition and intention; it is also said that this means: He will save them in the Hereafter and improve their state and accept their works on the Day of Judgement,