Issuing one revocable talaaq

Q: One day I had an argument with my wife about something and it got so bad that I got angry and used the word divorce. However, after some time, the anger subsided that same day and we both made peace. Is our marriage valid? If yes, what is the atonement for it? And if not, what is the solution?

Couple having relations before tawaaf-e-ziyaarah

Q: There is a couple that recently came from hajj. They did all things correct but they have 1 doubt. 

After coming from Muzdalifah, doing 1st rami, and cutting of hairs/halaq, they opened their ihram and after that they thought they are open from ihram and out of ignorance and oversight they did sexual relations just before tawaf e ziarat. 

Tawaf e ziarat was done after gusal and proper clean cloths? Would they be required to give damm? If yes, will it be for both or just 1?