Riyad as-Salihin: The Book of Jihad – Hadith No. 696 — Abu Safwan Suwaid bin Qais (May Allah be pleased with him) reported: Makhramah… (Hadith No. 696)

Abu Safwan Suwaid bin Qais (May Allah be pleased with him) reported: Makhramah Al-'Abdi and I procured some drapery from Hajar and brought them to Makkah. The Prophet (ﷺ) came and bargained with us for some trousers and we sold them to him. We had a person who weighed the cloth in order to fix the price. The Prophet (ﷺ) said to him, "Weigh and add a little to it.".

Explanation:

Reference: Riyad as-Salihin, The Book of Jihad, Hadith No. 696