It is narrated from Hazrat Aisha (may Allah be pleased with her) that Hazrat Abu Hudhaifah (may Allah be pleased with him) had made Salim—who was a freed slave of an Ansari woman—his adopted son, just as the Prophet (peace and blessings be upon him) had made Zaid bin Harithah (may Allah be pleased with him) his adopted son. In the time of ignorance, people used to consider an adopted son like a real son and would even consider him entitled to inheritance, until Allah Almighty revealed this verse: "Call them by (the names of) their fathers; that is more just in the sight of Allah. If you do not know their fathers, then they are your brothers in religion and your freed slaves." After this, people began to call them by their fathers' names, and those whose fathers' names were not known were counted among the religious brothers and freed slaves. In this context, one day Hazrat Sahla (may Allah be pleased with her) came and said, "O Messenger of Allah! We used to consider Salim our son; he lived with me and Abu Hudhaifah and saw things about my privacy. Now Allah has revealed the command regarding adopted sons, which you also know." The Prophet (peace and blessings be upon him) said, "Give him five sips of your milk." After that, Salim (may Allah be pleased with him) became like her foster son.