“Abu ‘Abd Allah (a.s.), has said that ’Amir al-Mu’minin once drank water standing. He then drank the water left from his wudu standing; then he turned to Al-Husayn (a.s.), and said, ‘Son, I saw your grandfather, the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, doing as I just did.’”