ما هي أول غزوة صلى فيها الرسول صلى الله عليه وسلم؟

If the intent is to know the first battle in which the Messenger of Allah, may Allah bless him and grant him peace, performed the fear prayer (Salat al-Khawf), it was the Battle of Dhat al-Riqa', and it is also said to be the Battle of Banu al-Nadir. And if the intent is to know the first battle the Messenger of Allah, may Allah bless him and grant him peace, ever fought, it was the Battle of al-Abwa'.