Can you please explain the story of Dawood عليه السلام from Surat Saad? "And has the news of the litigants reached you? When they climbed over the wall into (his) Mihrâb (a praying place or a private room);...... O Dâwûd (David)! Verily! We have placed you as a successor on the earth; so judge you between men in truth (and justice) and follow not your desire - for it will mislead you from the Path of Allâh." [Surat Saad: 21-26]. Can you please explain what is the reason for his wrong decision?