Musnad Abu Ya'la al-Mawsili 117:74

Abu al-Rabi' al-Zahrani narrated to us, Hammad narrated to us, Thabit narrated from Anas, who said: The Messenger of Allah (may Allah bless him and grant him peace) saw a yellow mark on Abd al-Rahman ibn Awf, so he said: "What is this?" He said: "I have married a woman for the weight of a date stone of gold." The Messenger of Allah (may Allah bless him and grant him peace) said: "May Allah bless you." Then he said to him: "Give a wedding feast, even if with a sheep."