What is the ruling on selling tobacco (cigarettes) that is sold
through permission from a tobacco company?
Smoking is forbidden. Moreover, planting and selling tobacco is also prohibited because of the great harm it causes. It was mentioned in the Hadith:
There is no harm (in Islam) nor should one cause harm (either to himself or to others).
Moreover, it is one of the filthy things. Allah (Exalted be He) says in describing his Prophet Muhammad (peace be upon him): (Part No. 13; Page No. 32)
...he allows them as lawful At-Tayyibât (i.e. all good and lawful as regards things, deeds, beliefs, persons, foods), and prohibits them as unlawful Al-Khabâ’ith (i.e. all evil and unlawful as regards things, deeds, beliefs, persons and foods)
Allah (Exalted be He) also says:
They ask you (O Muhammad صلى الله عليه وسلم) what is lawful for them (as food). Say: "Lawful unto you are At-Tayyibât [all kind of Halâl (lawful-good) foods which Allâh has made lawful (meat of slaughtered eatable animals, milk products, fats, vegetables and fruits)].