Al-Zuhri says: She is Sayyidah Maymunah (may Allah be pleased with her) bint al-Harith bin Hazn bin Bujayr bin al-Huzam bin Ru'aybah bin Abdullah bin Hilal bin Amir bin Sa'sa'ah. She is the lady who offered herself (in marriage) to the Prophet (peace and blessings be upon him).
At-Tabarani recorded it; its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 15359