السويق
A drink or paste made from roasted, ground wheat or barley mixed with water, used as a light, quick-to-prepare food.
دَعَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِسَوِيقٍ فَلُتَّ، فَشَرِبَ وَشَرِبْنَا، ثُمَّ قَامَ إِلَى الْمَغْرِبِ فَمَضْمَضَ وَتَمَضْمَضْنَا، ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ
“The Messenger of Allah ﷺ called for sawiq, which was mixed and drunk by him and those with him; he then rinsed his mouth for the sunset prayer without performing a fresh ablution.” (meaning, not a literal translation)
Ibn al-Qayyim notes sawiq's convenience as a portable, easily digested travel food — a precursor to the general category of roasted-grain drinks still consumed across the region today.