I said: O Messenger of Allah ﷺ, when you send me on a mission, should I go and do what you tell me to do (with no delay) or witness and find out what someone who is not there cannot find out? He said: ʿWitness and find out what someone who is not there cannot find out.ʿ
قُلْتُ يَا رَسُولَ اللهِ إِذَا بَعَثْتَنِي أَكُونُ كَالسِّكَّةِ الْمُحْمَاةِ أَمِ الشَّاهِدُ يَرَى مَا لَا يَرَى الْغَائِبُ؟ قَالَ الشَّاهِدُ يَرَى مَا لَا يَرَى الْغَائِبُ