The Prophet's seeking refuge in prayer underscores the seriousness of punishment in the grave. Such supplication is not presented as protection from an imaginary event.
Al-ta'awwudh min 'adhab al-qabr
Seeking Allah's protection from punishment of the grave.
Through this prayer, a servant acknowledges personal weakness, Allah's power and His mercy as the source of safety. It links belief in the unseen with reverent concern for the Hereafter.