“I saw a man asking my father about a man who goes out to fight and buys and sells and trades during his campaign. My father said to him: ‘We were with the Messenger of Allah ﷺ in Tabuk, and we bought and sold, and he saw us and did not forbid us (to do that).’” (Using translation from Ibn Mājah 2823)
عَنْ رَجُلٍ يَغْزُو وَيَبِيعُ وَيُشْتَرِي وَيَتَّجِرُ فِي غَزْوَتِهِ؟ فَقَالَ لَهُ أَبِي «كُنَّا مَعَ رَسُولِ اللهِ ﷺ بِتَبُوكَ نَشْتَرِي وَنَبِيعُ وَهُوَ يَرَانَا فَمَا يَنْهَانَا»