It is narrated from Sayyiduna Suwaid bin Nu'man (may Allah be pleased with him) that he went with the Messenger of Allah (peace and blessings be upon him) in the year of Khaybar, until when they reached a place near Khaybar called Al-Sahba, the Messenger of Allah (peace and blessings be upon him) performed the Asr prayer. Then provisions for the journey were requested, but nothing was found except sattu (parched barley meal). So the Prophet (peace and blessings be upon him) ordered that it be soaked in water, then he and we ate it. When he stood up for the Maghrib prayer, he rinsed his mouth and we also rinsed our mouths, then he led us in prayer and did not perform ablution again.