عَنْ زَيْدِ بْنِ خَالِدٍ اَلْجُهَنِيِّ ‏- رضى الله عنه ‏- أَنَّ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-قَالَ: {"أَلَا أُخْبِرُكُمْ بِخَيْرِ اَلشُّهَدَاءِ? اَلَّذِي يَأْتِي بِشَهَادَتِهِ قَبْلَ أَنْ يُسْأَلَهَا"} رَوَاهُ مُسْلِم ٌ 1‏ .‏‏1 ‏- صحيح.‏ رواه مسلم ( 1719 )‏.‏
Translation
Narrated Ibn 'Abbas (RA)

The Prophet (ﷺ) said to a man, "Do you see the sun?" He replied, "Yes." He said, "Give witness in a similar case [which is as clear as the sun], or leave it."[Ibn 'Adi reported it with a Da'if (weak) chain or narrators, and al-Hakim graded it Sahih (authentic), but he was mistaken].