The Prophet (ﷺ) gave a banquet with two Mudds of barley on marrying some of his wives. (1 Mudd= 1 3/4 of a kilogram) .
Sahih al-Bukhari Book 67, Hadith 107
← Previous Hadith The marriage of Zainab bint Jahash was mentioned in the presence of Anas and he said, "I did not see the Prophet (ﷺ) giving a better banquet on marrying any of his wives than the one he gave on marrying Zainab. He then gave a banquet with one sheep."

Sahih al-Bukhari Book 67, Hadith 106 Next Hadith → Allah's Messenger (ﷺ) said, "If anyone of you is invited to a wedding banquet, he must go for it (accept the invitation)."

Sahih al-Bukhari Book 67, Hadith 108