2 verses have
heart
in Edition Clear Qur'an by Talal Itani / Hud (Hud)

11:5They wrap their chests to hide from Him. But even as they cover themselves with their clothes, He knows what they conceal and what they reveal. He knows what lies within the hearts.

11:120Everything We narrate to you of the history of the messengers is to strengthen your heart therewith. The truth has come to you in this, and a lesson, and a reminder for the believers.