Hadith 3210

Anas said the Prophet saw the trace of yellow on ‘Abd ar-Rahman b. ‘Auf and asked what that was. He replied, “I have married a woman for a nawat* weight of gold.” He said, “God bless you! Hold a wedding- feast, even if only with a sheep.” *a weight of five dirhams. (Bukhari and Muslim.)

عَنْ أَنَسٍ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَأَى عَلَى عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ أَثَرَ صُفْرَةٍ فَقَالَ: «مَا هَذَا؟» قَالَ: إِنِّي تَزَوَّجْتُ امْرَأَةً عَلَى وَزْنِ نَوَاةٍ مِنْ ذَهَبٍ قَالَ: «بَارَكَ اللَّهُ لَكَ أَوْلِمْ وَلَوْ بِشَاةٍ»

Reference: 5632100
In-book reference: Book 13, Hadith 3210
Hadith 3210 - Marriage - Mishkat al-Masabih - Sunnah.com