2 verses have
true
in Edition Clear Qur'an by Talal Itani / Ghafir (The Forgiver)

40:55So be patient. The promise of God is true. And ask forgiveness for your sin, and proclaim the praise of your Lord evening and morning.

40:77So be patient. The promise of God is true. Whether We show you some of what We have promised them, or take you to Us, to Us they will be returned.