Shaykh Muḥammad Ṣāliḥ al-‘Uthaymīn رحمه الله said: “Completing the Qur’ān in Ramaḍān for the person who fasts is not obligatory. However, it is incumbent for the individual to increase his reading of the Qur’ān in Ramaḍān consistent with the Sunnah of the Prophet ﷺ as Jibrīl would review the Qur’ān with him ﷺ every Ramaḍān.