Allah has inscribed faith upon such people's hearts, will reinforce them with a spirit from Him, and admit them into Gardens with rivers flowing under them, remaining in them timelessly, forever. Allah is pleased with them, and they are pleased with Him. Such people are the party of Allah. Truly it is the party of Allah who are successful. (Surat al-Mujadala, 22)
Those believers to whom Allah has announced His promise of good news have important qualities, as revealed in the Qur'an: