The prologue of Warriors: the Five of the Moon and Sun:
The moon showed brightly, as a brown cat silently walked.
"Thomasstar," a starry cat greeted him. "Leader of Sanderclan. I have a prophecy for you..."
"Starflake... killed in battle against... oh how I miss you! If only Diamondclan Hadn't attacked!" The leader meowed. "I miss you deeply..."
"There will be five with the power of the moon and sun in their paws... four kin or not kin..." She whispered. "I loved you, maybe even more than your mate Leafshine..."
The vision started to fade as Thomasstar woke up.
"Thomasstar!" Yowled the medicine cat.
"Hazeldusk," He greeted her.
"Meet your four sons!"
...
https://www.wattpad.com/story/208909968