What did the Prophet Muhammad (saw) say about taking possession of land unjustly?
 Narrated Sa`id bin Zaid bin `Amr bin Nufail:                     That Arwa sued him before Marwan for a right, which she claimed, he had deprived her of. On that Sa`id said, "How should I deprive her of her right? I testify that I heard Allah's Apostle saying, 'If anyone takes a span of land unjustly, his neck will be encircled with it down seven earths on the Day of Resurrection."