Narrated Abdullah bin Abi Aufa (RA):
We were in the company of the Prophet ﷺ on a journey and he was fasting, and when the sun set, he addressed somebody, "O so-and-so, get up and mix Sawiq with water for us." He replied, "O Allahs Apostle ﷺ ! (Will you wait) till it is evening?" The Prophet ﷺ said, "Get down and mix Sawiq with water for us." He replied, "O Allahs Apostle ﷺ ! (If you wait) till it is evening." The Prophet ﷺ said again, "Get down and mix Sawiq with water for us." He replied, "It is still daytime."(1) The Prophet ﷺ said again, "Get down and mix Sawiq with water for us." He got down and mixed Sawiq for them. The Prophet ﷺ drank it and then said, "When you see night falling from this side, the fasting person should break his fast."