the prophet is not supposed to take any captives to strengthen his position on the earth. you want worldly gains but god wants the life hereafter for you. god is majestic and allwise.
ما كان لنبي أن يكون له أسرى حتى يثخن في الأرض تريدون عرض الدنيا والله يريد الآخرة والله عزيز حكيم