Does touching one's wife invalidate ablution?
                                Touching the wife according to the Shafi'ee's doctrine invalidate husband's ablution. And Allah Knows Best.
                             
                        
                            
                                
                                What is the ruling on working for a company that manufactures cigarettes?
                                All Perfect Praise is due to Allah, The Lord of The Worlds
Working for a company that manufactures cigarettes is forbidden because smoking itself is forbidden, so its production, selling and circulation are forbidden as a result since they aid in committing sin, and whoever aids in that is like the sinner himself. And Allah Knows Best.
                             
                        
                            
                                
                                What is the ruling on the existence of cattles' marketplace of (Sheeps, cows and chickens ) inside a graveyard?
                                Graves must be respected, and it is not permissible to sit on them or show any disrespect. Establishing a marketplace within a cemetery is undoubtedly a form of disrespect to the deceased and is not permissible. Such actions should not be tolerated. And Allah Knows Best.
                             
                        
                            
                                
                                Is it permissible for a Muslim physician to specialize in gynecology obstetrics, and what is the ruling on working as such?
                                Some fields of knowledge are an individual duty while others are a collective one, and specializing in gynecology obstetrics is a collective duty. However, if there were female physicians to treat women, then there is no need for a male gynecology obstetrics specialist to look at women`s Awrahs (private parts) except in necessary situations since the jurisprudential maxim says:” Necessity must only be assessed and answered proportionately.” And Allah Knows Best.