Where does “huwa al-awwalu wa al-ākhiru wa al-ẓāhiru wa al-bāṭin” occur?

Allah’s Power, Divinity, Beginninglessness and Eternity

• Al-Ḥadīd 57:3
• Ar-Raḥmān 55:26
• Al-Qaṣaṣ 28:88
• Al-Kahf 18:45