What did the Prophet Muhammad (saw) do when `Abdur-Rahman bin Abi Bakr gave him the Siwak?
 Narrated `Aisha:                     `Abdur-Rahman bin Abi Bakr came holding a Siwak with which he was cleaning his teeth. Allah's Apostle looked at him. I requested `Abdur-Rahman to give the Siwak to me and after he gave it to me I divided it, chewed it and gave it to Allah's Apostle. Then he cleaned his teeth with it and (at that time) he was resting against my chest.