Narrated Humran bin `Abbas: Muawiya said (to the people), "You offer a prayer which we, who were the companions of the Prophet never saw the Prophet offering, and he forbade its offering," i.e. the two rak`at after the compulsory `Asr prayer.
Hadith ReferenceSahih Bukhari / The Virtues and Merits of The Companions of The Prophet / Hadith: 3766
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة