What companion of Prophet (PBUH) was awarded with the title of “The sword of Allah”?

A. Abu Bakr Siddique (R.A)
B. Umar Farooque (R.A)
C. Ali Al-Murtaza (R.A)
D. Khalid bin Waleed (R.A)


If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.