(Al-Baqara) 2 : 68
قَالُوا ادْعُ لَنَا رَبَّكَ يُبَيِّنْ لَنَا مَا هِيَ ۚ قَالَ إِنَّهُ يَقُولُ إِنَّهَا بَقَرَةٌ لَا فَارِضٌ وَلَا بِكْرٌ عَوَانٌ بَيْنَ ذَٰلِكَ ۖ فَافْعَلُوا مَا تُؤْمَرُونَ
They said: “Appeal to your Lord for us to explain to us what type of cow she is”? He said: “Indeed, He says that indeed, it should be a cow neither too old nor too young, but of an age in between; then you do what you are ordered”.