Volume 7 · Book 62 · Hadith 109
Narrated Anas bin Malik: Once the Prophet saw some women and children coming from a wedding party. He got up energetically and happily and said, "By Allah! You (i.e., the Ansar) are the most beloved of all people to me."
— Sahih Bukhari, Volume 7, Book 62: Wedlock, Marriage (Nikaah), Hadith #109