8. Who give the suggestion of digging the trench around the city of Madinah at the time of “battle of Khandaq”? September 20, 2025 by Admin A. Abu Bakr Siddique (R.A) B. Salman Al-Farsi (RA) C. Khalid bin Waleed (R.A) D. None of these ✅ The correct answer is option B. Salman Al-Farsi (RA).