Muhammad Ali's Daughter Reflects on Father's Passing with Touching Story

This is powerful.

Muhammad Ali died Friday, a family spokesperson confirmed to NBC News's Jon Schuppe.

On Saturday, his daughter, Hana, shared a touching story about her father’s final moments.

According to Hana, Ali’s heart kept beating for 30 minutes after his organs failed as the legendary boxer’s family comforted him.

“A true testament to the strength of his spirit and will,” Hana wrote.

Ali was 74.

[Instagram, h/t For The Win]