Musannaf Ibn Abi Shaybah 18236 — A man marrying off a young girl

Al-Hasan (may Allah have mercy on him) said: Sayyiduna Umar (may Allah be pleased with him) expressed his wish to marry Sayyidah Umm Kulthum (may Allah be pleased with her), the daughter of Sayyiduna Ali (may Allah be pleased with him). Sayyiduna Ali (may Allah be pleased with him) said: She is young, so look at her. Then he sent Umm Kulthum to him with a message, and Sayyiduna Umar (may Allah be pleased with him) jested with her. She said in reply: Were it not that you are an old man, or were it not that you are the Commander of the Believers. Sayyiduna Umar (may Allah be pleased with him) liked the idea of a marriage tie with Sayyiduna Ali (may Allah be pleased with him), so he proposed again, and Sayyiduna Ali (may Allah be pleased with him) married her to him.