Battle of the Trench enemy in the open (which led to victory at Badr), and waiting for them inside the city (a lesson learnt from the defeat at Uhud) were both suggested. Ultimately, the outnumbered Muslims opted to engage in a defensive battle by digging deep trenches to act as a barrier along the northern front. The tactic of a defensive trench was introduced by Salman the Persian. Every capable Muslim in Medina including Muhammad contributed to digging the massive trench in six days. The ditch was dug on the northern side only, as the rest of Medina was surrounded by rocky mountains and
Battle of the Trench Watt conjectures that the Meccans at this point began to contemplate that conversion to Islam would be the most prudent option. The main contemporary source of the battle is the 33rd Surah of the Quran. The Sunni Muslim Mufassir Ibn Kathir mentions that is about this incident in his book Tafsir ibn Kathir, and his commentary on this verse mentions the reason and event of the Battle, his commentary is as follows: The event is referenced in the Sunni, Hadith collection Sahih al-Bukhari, it mentions the death of Sa'd ibn Mu'adh, as follows: The Sahih al-Bukhari collection also mentions that