"I bought some food and made food and made a profit on it (by selling it) before I took possession of it. I came to the Messenger of Allah and told him about that and he said: 'Do not sell it until you take possession of it."' (Using translation from Nasāʾī 4603)
أَنْ أَقْبِضَهُ فَأَتَيْتُ رَسُولَ اللهِ ﷺ فَذَكَرْتُ ذَلِكَ لَهُ فَقَالَ «لَا تَبِعْهُ حَتَّى تَقْبِضَهُ»