1. A number of our people have narrated from Sahl ibn Ziyad and Ahmad ibn Muhammad from all from ibn Mahbub from ‘Abd Allah ibn Sinan who has said the following: “I once heard abu ‘Abd Allah , saying, ‘If one forms a stipulation against the book of Allah, it is not permissible for him as well for the other party. However, the Muslims must stand by their stipulations which agree with the book of Allah, most Majestic, most Glorious. 5 ”