Narrated Ibn Abbâs that a person asked him about Hajj-at-Tamattu' and said: "The people advised me not to do so." Ibn Abbas ordered him to perform it. So he did it. Later he saw in a dream someone saying to him, Ḥajj-Mabrûr [Ḥajj performed in accordance with the Prophet's Sunna (legal way) without committing sins and accepted by Allâh] and an accepted 'Umra." So he told that dream to Ibn 'Abbâs. He said, "This is the Sunna (legal way) of the Prophet (ﷺ) ". [2:638-O.B.]