1. A number of our people have narrated from Ahmad ibn Muhammad from al-‘Abbass ibn ‘Amir from ‘Abd Allah ibn Bukayr from his father who has said the following: “Abu ‘Abd Allah عليه السلام, once said to me, ‘When you are certain that your Wudu’ has become invalid you must take Wudu’. You must never invent a Wudu’ until you are certain that your Wudu’ has become invalid.’”