Al-Kāfi - The Book of Haj

Chapter: The First Thing of Lands that Allah Created Was the Site of the House and How Was What He First Created َّدُ بْنُ يَحْيَى عَنْ ٠َّدِ بْنِ الْحُسَيْنِ عَنْ ٠َّدِ بْنِ سِنَانٍ عَنْ ٠ْرَانَ الْعِجْلِيِّ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ السَّلاَ٠) أَيَّ شَيْ‏ءٍ كَانَ ٠َوْضِعُ الْبَيْتِ حَيْثُ كَانَ الْ٠َاءُ فِي قَوْلِ الله عَزَّ وَجَلَّ وَكانَ عَرْشُهُ عَلَى الْ٠َهَاةً بَيْضَاءَ يَعْنِي دُرَّةً.

(11:9) He (the Imam) replied, ‘It was Mahat, a white diamond.’” شهور - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (7/10))