Silsilat al-Ahadith al-Sahihah

Sayyiduna Mughirah bin Shu’bah (may Allah be pleased with him) says that when I came to Najran, the people there asked me, “You people say (about Lady Maryam [peace be upon her]) ‘O sister of Harun’ «يٰٓاُخْتَ هٰرُوْنَ», whereas (Harun’s brother) Musa [peace be upon him] was much before Isa [peace be upon him] (so how could Lady Maryam [peace be upon her] be the sister of Sayyiduna Harun [peace be upon him])?” When I came to the Messenger of Allah (peace and blessings be upon him), I asked him about this. He (peace and blessings be upon him) said: “They used to name (their children) after their prophets and righteous predecessors (i.e., Lady Maryam [peace be upon her] had a brother named Harun, and Musa [peace be upon him] also had a brother named Harun).”