It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "In place of the Torah I was given the Seven Long (Surahs); in place of the Injil I was given the Mathani; in place of the Zabur I was given the Mi'un (the surahs of about a hundred verses); and I was granted superiority through the Mufassal (Surahs)."
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18407