I swear that I will leave the religion of Allah if I return to smoking" and then returned to smoking. What is the ruling?
Whoever conditions disbelief on something and intends to disbelieve if it happens, he becomes a disbeliever immediately. Therefore, you must pronounce the two testimonies of faith (Shahada) and reconcile with your wife if she is in her waiting period (Iddah). It is recommended to consult the Department of Fatwa for further guidance. And Allah Knows Best.
Is permissible to buy/sell with non-Muslim?
Yes buying/selling for a Muslim with non-Muslim is permissible as regards what is lawful.
I have concluded my marriage contract at a Sharia court; however, one day I was talking to my fiancée over the phone and she got on my nerves leading me to utter one divorce. This is knowing that I can`t tell my her father because he is very strict and will not accept that at all. What is the best course of action that I should pursue in this situation?
All perfect praise be to Allah the Lord of the Worlds. May His peace and blessings be upon Prophet Mohammad and upon all his family and companions.
When divorce takes place before the consummation of marriage it is called Ba`in divorce* (Minor irrevocable divoce), so your wife is considered unlawful to you until you conduct a new marriage contract and pay Mahr* , and you should visit the Iftaa` Department in order to know the correct Fatwa. And Allah The Almighty Knows Best.
* Minor irrevocable divorce Talaq Al-Ba'in Binona Soghra: It is a divorce where the husband cannot take his ex-wife back unless with her consent, conducting a new marriage contract and paying new bridal wealth Mahr.
* In Islam, a Mahr is the obligation, in the form of money or possessions paid by the groom, to the bride at the time of Islamic marriage. While the Mahr is often money, it can also be anything agreed upon by the bride such as jewelry, home goods, furniture, a dwelling or some land.