The Ansar, the people of Medina from the Prophet's companions before his immigration, reached a high rank in Islam for their great effort in supporting Islam, sheltering the Messenger and his immigrant companions, loving him, and his love for them. They used to present all that they had for him to the extent that lots of people became their enemies due to Islam. As a result, the Prophet ﷺ urged all Muslims to love them. Moreover, he made loving them a sign of one's truthful and perfect faith and hating them is a sign of one's hypocrisy and lack of faith. In this hadith, the Prophet ﷺ informed that a person who believes in Allah and the Last Day never bears a grudge against the Ansar, for whoever knows their right, initiative to support and spread Islam, and fighting against all people in defending the prophet will definitely love them out of necessity, which is a sign of his sincere faith. On the other hand, if one hates them, it is a sign of hypocrisy and corrupted intention. Because these great people with those supreme attributes are loved by only believers and hated by only hypocrites. Whoever loves them is loved by Allah and whoever hates them is hated by Allah as in the hadith narrated in the two Sahihs. Finally, this hadith contains some lessons: (1) It shows the Ansar’s virtues, (2) It confirms that loving them is a sign of one's sincere faith while hating them is a sign of corruption or lack of faith, and (3) It calls every Muslim to give Medina's people their rights..