Ambiguous words of talaaq

Q: Where is lafz-e-kinaya in the Quran? Many scholars say that if a husband says go to hell with the intention of divorce, then will the divorce take place? I mean talaq-e-bain, can you please tell me is there any mention of kinaya words in the Quran?

Serving one's ailing mother

Q: What should a person do in the situation where he needs to bring his ailing mother into his home so that he can look after her, but his wife is unhappy with this? He has explained to his wife that he will look after his mother and tend to her, yet she is still upset and refuses to speak to him. What does Shari’ah instruct in this situation?