Worried about one's height

Q: I am 28 years old and my height is only 5.5 Alhamdulillah but I want my height to increase by 2,3 inches. People say that it is impossible to gain height at such an age but I believe that nothing is impossible for Allah so is there any Dua for the same and is it permissible to ask Allah to increase my height.

Husband saying if he sleeps with his wife in the future it will be like zina

Q: If during an argument between husband and wife, husband says if he sleeps with his wife in future it will be like zina. Husband has no intention of giving divorce to his wife. Husband also is not aware of the ruling /punishment for that saying. What is his position now and what should he do? Is it any where close to zihaar.