Abdullah bin Buraydah narrates from his father Sayyiduna Buraydah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) sent Ali (may Allah be pleased with him) to Khalid bin al-Walid (may Allah be pleased with him) to bring the one-fifth. He took a slave girl from it. In the morning, drops were falling from the head of Ali (may Allah be pleased with him). Khalid (may Allah be pleased with him) said to Buraydah (may Allah be pleased with him): Have you seen what he has done? I said: I bear a grudge against Ali (may Allah be pleased with him). I mentioned this to the Messenger of Allah (peace and blessings be upon him), and he (peace and blessings be upon him) said: "O Buraydah! Do you bear a grudge against Ali?" I said: Yes. He (peace and blessings be upon him) said: "Love Ali, for his due in the one-fifth is even more than that."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12957