Mishkat al-Masabih

Rafi‘ b. Khadij said, “We used to observe the sunset prayer with God’s Messenger, then one of us would go away when it was still possible to see the distance of a bowshot.” (Bukhari and Muslim)

وَعَنْ رَافِعِ بْنِ خَدِيجٍ قَالَ: كُنَّا نُصَلِّي الْمَغْرِبَ مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَيَنْصَرِف أَحَدنَا وَإنَّهُ ليبصر مواقع نبله "