ءَاتُونِى زُبَرَ ٱلْحَدِيدِ ۖ حَتَّىٰٓ إِذَا سَاوَىٰ بَيْنَ ٱلصَّدَفَيْنِ قَالَ ٱنفُخُوا۟ ۖ حَتَّىٰٓ إِذَا جَعَلَهُۥ نَارًا قَالَ ءَاتُونِىٓ أُفْرِغْ عَلَيْهِ قِطْرًا Qur’an Al-Kahf (18:96)A toonee zubara al h adeedi h att a i tha s a w a bayna a l s adafayni q a la onfukhoo h att a i tha jaAAalahu n a ran q a la a toonee ofrigh AAalayhi qi t r a n
Lit., "Blow!"
Made it (red) as fire. What does "it" refer to? Probably to the iron, either in sheets or blocks, to be welded with the molten lead.
I understand the defences erected to have been a strong barrier of iron, with iron Gates. The jambs of the Gates were constituted with blocks or bricks of iron, and the interstices filled up with molten lead, so as to form an impregnable mass of metal. It may be that there was a stone wall also, but that is not mentioned. There was none in the Iron Gate near Bukhara.