Which companion of Prophet Muhammad (PBUH) is known as the ‘Sword of Allah’?

A. Ali ibn Abi Talib
B. Hamza ibn Abdul-Muttalib
C. Khalid ibn al-Walid
D. Umar ibn al-Khattab

Answer: Khalid ibn al-Walid


Additional Information: Khalid ibn al-Walid earned the title 'Sword of Allah' for his military prowess.