From the incidents of Islam

Great men and women, companions of the Messenger of God, carried the trust with him and sacrificed everything precious and valuable to uphold the word of truth.
They willingly sacrificed their lives and contributed their wealth, setting wonderful examples of self-sacrifice, upholding noble values, and steadfastness in the face of tyranny and injustice.
In this book, we attempt to remind ourselves of the piety and devotion of those who came before us, and their influential stances, so that our hearts may be moved and follow their example.