It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that he said to Sayyidah Aisha Siddiqa (may Allah be pleased with her) that your name was given as Umm al-Mu'mineen so that your good fortune may be established, and this name of yours had already been decided before your birth.
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 1906
Hadith Gradingحکم دارالسلام:إسناده ضعيف ، ليث بن أبي سليم ضعيف وشيخه مجهول.