3 verses have
believer
in Edition Clear Qur'an by Talal Itani / Al-Qasas (The Stories)

28:10The heart of Moses’ mother became vacant. She was about to disclose him, had We not steadied her heart, that she may remain a believer.

28:47Otherwise, if a calamity befell them as a result of what their hands have perpetrated, they would say, “Our Lord, if only You had sent us a messenger, we would have followed Your revelations, and been among the believers.”

28:86You did not expect the Scripture to be transmitted to you, except as mercy from your Lord. Therefore, do not be a supporter of the disbelievers.