1021 - 'Abd al-Malik ibn 'Abd al-Hamid informed me, saying: Abu 'Abd Allah said: "Jarir ibn 'Abd Allah was among the last of the Companions of the Messenger of Allah, peace and blessings of Allah be upon him, to embrace Islam, and he says: 'I pledged allegiance to the Prophet, peace and blessings of Allah be upon him, based on sincerity (al-nush). So, can sincerity and modesty be part of faith, while fasting and prayer are not part of faith?"