Characteristics of Prayer

Bukhari :: Book 1 :: Volume 12 :: Hadith 754

Narrated 'Ikrima:

I saw a person praying at Muqam-lbrahim (the place of Abraham by the Ka'ba) and he was saying Takbir on every bowing, rising, standing and sitting. I asked Ibn 'Abbas (about this prayer). He admonished me saying: "Isn't that the prayer of the Prophet?"