The question asks for statements that are not correct. Statement 1 is correct. Medieval texts, including accounts from the Sultanate period like the Tarikh-i-Firuz Shahi, do indeed mention Ashokan pillars, particularly in the context of Firuz Shah Tughlaq's efforts to relocate them. Statement 2 is correct. Shams Siraj Afif, the author whose work is included in the Tarikh-i-Firuz Shahi, provides accounts of Firuz Shah Tughlaq moving two Ashokan pillars from Topra and Meerut to Delhi. These are historically known as the Delhi-Topra and Delhi-Meerut pillars. Statement 3 is correct. There are historical and anecdotal accounts of ancient pillars or their fragments being found in various locations and, over time, being incorporated into local religious practices, sometimes identified with or worshipped as Shiv Lingas. Statement 4 is incorrect. Ashokan pillars were characteristically monolithic structures carved from polished sandstone, typically sourced from quarries like Chunar. They were not made of gold, iron, or bronze.