Humayd heard Sayyiduna Anas (may Allah be pleased with him) say that Abd al-Rahman bin Awf (may Allah be pleased with him) married for gold equal to the weight of a date stone, and the Messenger of Allah (peace and blessings be upon him) said: "Hold a wedding feast (walimah), even if it is only one sheep."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14363