He heard the Messenger of Allah saying: "Indeed the Corner and the Maqam are two corundums from the corundum of Paradise. Allah removed their lights, and if their lights had not been removed then they would illuminate what is between east and the west." (Using translation from Tirmidhī 878)
قَالَ رَسُولُ اللَّهِ ﷺ «الرُّكْنُ وَالْمَقَامُ يَاقُوتَتَانِ مِنْ يَوَاقِيتِ الْجَنَّةِ طَمَسَ اللَّهُ نُورَهُمَا وَلَوْلَا ذَلِكَ لَأَضَاءَتَا مَا بَيْنَ الْمَشْرِقِ وَالْمَغْرِبِ»