for example, "What did the Prophet Muhammad (peace be upon him) say about taking land unjustly?". 

What did Allah's Apostle (peace be upon him) say regarding someone taking a piece of land unjustly?
 Narrated Muhammad bin Ibrahim bin Al-Harith:                     from Abu Salama bin `Abdur-Rahman who had a dispute with some people on a piece of land, and so he went to `Aisha and told her about it. She said, "O Abu Salama, avoid the land, for Allah's Apostle said, 'Any person who takes even a span of land unjustly, his neck shall be encircled with it down seven earths.' "