From Sahih Bukhari (Hadith 5153):
Narrated Anas bin Malik:`Abdur-Rahman bin `Auf came to Allah's Messenger (ﷺ) and he had marks of Sufra (yellow perfume). Allah's Messenger (ﷺ) asked him (about those marks). `AbdurRahman bin `Auf told him that he had married a woman from the Ansar. The Prophet (ﷺ) asked, "How much Mahr did you pay her?" He said, "I paid gold equal to the weight of a date stone." Allah's Messenger (ﷺ) said to him, "Give a wedding banquet, even if with one sheep
Reference: Bukhari 5153