Sahih Muslim — Hadith #7811

And has told us [Mansur bin Abu Muzahim] has told us [Ibrahim bin Sa'd]. (in another narration it is stated) has told me [Muhammad bin Ja'far bin Ziyad] has told us [Ibrahim] - namely bin Sa'd - from [Ibn Shihab] from [Sa'id bin al-Musayyab] from [Abu Hurairah] he said, "The Messenger of Allah sallallaahu 'alaihi wasallam was once asked, "What is the most important deed? ' He answered, "Faith in Allah." He asked again, "Then what?" He answered, "Jihad in the way of Allah." He asked again, "Then what?" He answered, "Mabrur Hajj." And in the narration of [Muhammad bin Ja'far], 'Faith in Allah and His Messenger'." And has related it to me [Muhammad bin Rafi'] and [Abd bin Humaid] from [Abdurrazzaq] has reported to us [Ma'mar] from [az-Zuhri] with this isnaad likewise.