The Prophet (ﷺ) said, "The sign of Belief is to love the Ansar, and the sign of hypocrisy is to hate the Ansar."
Sahih al-Bukhari Book 63, Hadith 9
← Previous Hadith I heard the Prophet (ﷺ) saying (or the Prophet (ﷺ) said), "None loves the Ansar but a believer, and none hates them but a hypocrite. So Allah will love him who loves them, and He will hate him who hates them."

Sahih al-Bukhari Book 63, Hadith 8 Next Hadith → The Prophet (ﷺ) saw the women and children (of the Ansar) coming forward. (The sub-narrator said, "I think that Anas said, 'They were returning from a wedding party.") The Prophet (ﷺ) stood up and said thrice, "By Allah! You are from the most beloved people to me."

Sahih al-Bukhari Book 63, Hadith 10