in Ceylon, is where the Arabs say Adam bewailed his expulsion from Paradise, and stood on one foot till God forgave him. It was the Portuguese who first called it “Pico de Adam.” (See Kaaba)
In the granite is the mark of a human foot, above 5 feet long by 2.5; broad, said to have been made by Adam, who, we are told, stood there on one foot for 200 years, to expiate his crime. After his penance he was restored to Eve. The Hindus assert that the footprint is that made by Buddha when he ascended to heaven.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894