These differences are generally sought to be explained away or minimised, and even eminent scholars demur to pointed references to the oppressive acts of bigoted Muslim rulers like Firuz Tughluq and Sikandar Lodi even though proved by the unimpeachable testimony of their own confessions. Such an attitude may be due to praiseworthy motives, but is entirely out of place in historical writings. (xxxi)
— SIKANDAR KHAN LODI