Husayn bin Ali (may Allah be pleased with them both) reported that Sayyiduna Ali (may Allah be pleased with him) said: On the day of Badr, an old she-camel came to my share of the spoils, and the Messenger of Allah (peace and blessings be upon him) gave me another she-camel from the khumus (one-fifth). When I intended to marry Fatimah (may Allah be pleased with her), I arranged with a man of Banu Qaynuqa', who was a goldsmith, that we would bring idhkhir. I intended to sell it and use it to help me with my wedding feast.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب إحياء الموات / 11853