The Messenger of Allah ﷺ said, "Whoever loves the Ansar, Allah will love him when he meets Him, and whoever hates the Ansar, Allah will hate him when he meets Him."
حدثنا يزيد بن هارون أخبرنا محمد بن عمرو عن سعد بن المنذر بن أبي حميد الساعدي عن حمزة بن أبي أسيد قال سمعت
قال رسول الله ﷺ من أحب الأنصار أحبه الله حين يلقاه ومن أبغض الأنصار أبغضه الله حين يلقاه
Its isnad is hasan. Its narrators are acceptable and deemed truthful. Muhammad bin Amr bin Alqama is Ibn Waqqas Laythi, and Saad bin Mundhir bin Abu Humayd Saadi Ansari is also acceptable, while Hamza bin Abu Usayd Saadi Ansari is trusted and his hadith appears in Bukhari.The hadith was narrated by Ibn Majah, 1/57, number 163, in the Introduction, chapter on the merit of the Ansar, and by Ibn Hibban, 570, number 2291.