Zaid bin Arqam reported that Allah's Messenger (ﷺ) said: O Allah,, grant forgiveness to the Ansar, the offspring of the Ansar and the offspring of the offspring of the Ansar.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2506
Anas reported that Allah's Messenger (ﷺ) sought forgiveness for the Ansar and he said: I think (he also sought forgiveness) for the children of the Ansar and the slaves and the freed men of the Ansar. I have no doubt about it.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2507
Anas reported that Allah's Messenger (ﷺ) saw children and women of the Ansar coming back from a wedding feast. Allah's Apostle (ﷺ) stood up motionless (as a mark of respect) and said: O Allah, (bear witness) (and addressing the Ansar), said: You are dearest to me amongst people, (and said: O Allah (bear witness) (and addressing the Ansar), said: You are dearest to me amongst people. And he meant Ansar.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2508
Anas bin Malik (RA) reported that a woman from the Ansar came to Allah's Messenger (ﷺ) and Allah's Messenger (ﷺ) stood aside with her and said: By Him in Whose Hand is my life, you are dearest to me amongst the people. He repeated it thrice.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2509
Anas bin Malik (RA) reported Allah's Messenger (ﷺ) as saying: The Ansar are my family and my trusted friends. and the people would increase in number whereas they (the Ansar) would become less and less, so appreciate the deeds of those from amongst them who do good and overlook their failings.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2510