question #1 Sahih al-Bukhari 4117, Book 64, Hadith 161 : What was the role of Angel Gabriel in guiding the Prophet during the events after the Battle of the Trench?

When the Prophet (ﷺ) returned from Al-Khandaq (i.e. Trench) and laid down his arms and took a bath,
Gabriel came and said (to the Prophet (ﷺ) ), You have laid down your arms? By Allah, we angels have not
laid them down yet. So set out for them.” The Prophet (ﷺ) said, “Where to go?” Gabriel said, “Towards
this side,” pointing towards Banu Quraiza. So the Prophet (ﷺ) went out towards them.