Ibn Buraidah narrates from his father: Sayyiduna Abu Bakr (may Allah be pleased with him) and Sayyiduna Umar (may Allah be pleased with him) sent a marriage proposal for Sayyidah Fatimah (may Allah be pleased with her), but the Noble Prophet (peace and blessings be upon him) said: "She is young." Then Sayyiduna Ali (may Allah be pleased with him) sent a proposal for her, so the Noble Prophet (peace and blessings be upon him) married her to Sayyiduna Ali (may Allah be pleased with him).
Hadith Referenceصحیح ابن حبان / كتاب إخباره ﷺ عن مناقب الصحابة رجالهم ونسائهم بذكر أسمائهم رضوان الله عليهم أجمعين / 6948
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «المشكاة» (6095).فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم