Sahih al-Bukhari, Volume 7, Book 62, Hadith 161 (USC-MSA) ⓘ
Narrated Anas bin Malik: An Ansari woman came to the Prophet and he took her aside and said (to her). "By Allah, you (Ansar) are the most beloved people to me."
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ هِشَامٍ، قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ ـ رضى الله عنه ـ قَالَ جَاءَتِ امْرَأَةٌ مِنَ الأَنْصَارِ إِلَى النَّبِيِّ صلى الله عليه وسلم فَخَلاَ بِهَا فَقَالَ " وَاللَّهِ إِنَّكُنَّ لأَحَبُّ النَّاسِ إِلَىَّ " .
also referenced under: Book 67, Hadith 167 (In-Book) & Hadith 5234 (DarusSalam)