Assalamu Alaykum brother Ali, thank you so much for sharing your dream with us.

Since you saw this dream right before Fajr, it carries weight and is worth paying attention to. As our beloved Prophet Muhammad (SAWW) taught us, a true dream is one of the forty-six parts of prophecy, often serving as glad tidings or a gentle reminder from Allah.

Normally, seeing worry, grief, or distress in a dream without loud wailing actually points to the opposite in waking life—meaning relief, happiness, and the clearing away of difficulties. However, to give you an accurate interpretation, there is one very important detail I cannot assume because it completely changes the meaning of your dream:

Is your father currently alive in real life, or has he passed away?
When a deceased father appears worried or concerned, it carries a very different spiritual message—often related to his state, a need for charity (Sadaqah) and prayers, or displeasure regarding a family matter—compared to if he is still living among you.

Also, if you happen to recall:

1. Is your sister currently going through any known stress, or are you feeling distant from her lately?
2. How were their clothes looking in the dream (clean, old, bright, or dark)?

Please let me know about your father first, and once I have that detail, I will gladly give you the full interpretation and guidance, Insha'Allah.