This is an innovation. Simply decide on the plot you want to buy, pray istikhara and buy it!

in our country there is this practice that when someone buys a plot of land to build a house before starting he gathers people & sacrifice a cow & get the imams to read quran in that plot, (each with a juz of quran)or others finish building then before they move in they do the above rituals, is this according to islam? And if not what is the proper way to proceed if one acquires a land?