Muhammad, in Sahih Muslim is also reported to have said "The rights will be rendered back to those to whom they are due, and even the sheep that does not have horns will take revenge from the horned sheep." And on another occasion he is reported to have said "Certainly, al-Amanah (the trust or moral responsibilities, etc. and all the duties which Allah has ordained) descended from the Heaven and settled in the roots of the hearts of the faithful believers, and then the Qur'an was revealed, and the people read the Qur'an (and learnt al-Amanah from it) and also learnt it from the Sunnah. (i.e. Both the Qur'an and As-Sunnah strengthen the faithful believers' 'Amanah')."