Imam al-Sha'bi (may Allah have mercy on him) said: Women gifted themselves to the Prophet (peace and blessings be upon him). He (peace and blessings be upon him) consummated marriage with some of them and deferred others, and he did not go near them until he (peace and blessings be upon him) passed away; and they did not marry after him (peace and blessings be upon him). Among them was Umm Sharik (may Allah be pleased with her). This is the saying of Allah Almighty: "You may defer whom you will of them and take to yourself whom you will; and whoever you desire of those you had set aside, there is no blame upon you." [Surah al-Ahzab: 51]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13355