Sayyiduna al-Miswar bin Makhramah (may Allah be pleased with him) narrates: Subay'ah (may Allah be pleased with her) gave birth a few days after the death of her husband, and she came to the Prophet (peace and blessings be upon him) and asked for permission to marry, and he (peace and blessings be upon him) gave her permission.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17145