sharaab peene de masjid mein baith kar Ya wo jagah bataa, jahaan Khuda nahin

These three poets r legendary in Urdu literature . Ghalib(1797 -1869) Iqbal(1877-1938) and Faraz(1931-2008) Their views on the universality of God in these famous couplets . It was not a feud. At best, you can call it​ a poetic difference of opinion among witty intellectuals spread across centuries. Ghalib started it in the 19th century