A Muslim Saying "I Have Submitted"
Interpreters suggest that if a Muslim dreams of saying "I have submitted," it may indicate the rectitude of their affairs in life. This dream also signifies the strengthening of their sincerity and piety towards Allah. This is an indication of good state and steadfastness on truth.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam