Rav Ḥisda would praise Rav Hamnuna to Rav Huna by saying that he is a great man. Rav Huna said to him: When he comes to you, send him to me. When Rav Hamnuna came before him, Rav Huna saw that he did not cover his head with a cloth, as Torah scholars did. Rav Huna said to him: What is the reason that you do not cover your head with a cloth? Rav Hamnuna said to him: The reason is that I am not married, and it was not customary for unmarried men to cover their heads with a cloth. Rav Huna turned his face away from him in rebuke, and he said to him: See to it that you do not see my face until you marry. The Gemara notes: Rav Huna conforms to his standard line of reasoning, as he says: If one is twenty years old and has not yet married a woman, all of his days will be in a state of sin concerning sexual matters. The Gemara asks: Can it enter your mind that he will be in a state of sin all of his days? Rather, say that this means the following: All of his days will be in a state of thoughts of sin, i.e., sexual thoughts. One who does not marry in his youth will become accustomed to thoughts of sexual matters, and the habit will remain with him the rest of his life. Rava said, and similarly, the school of Rabbi Yishmael taught: Until one reaches the age of twenty years the Holy One, Blessed be He, sits and waits for a man, saying: When will he marry a woman. Once he reaches the age of twenty and has not married, He says: Let his bones swell, i.e., he is cursed and God is no longer concerned about him. Rav Ḥisda said: The fact that I am superior to my colleagues is because I married at the age of sixteen, and if I would have married at the age of fourteen, I would say to the Satan: An arrow in your eye, i.e., I would not be afraid of the evil inclination at all.
