﴿ قَالُوا۟ ٱدْعُ لَنَا رَبَّكَ يُبَيِّن لَّنَا مَا هِىَ ۚ قَالَ إِنَّهُۥ يَقُولُ إِنَّهَا بَقَرَةٌۭ لَّا فَارِضٌۭ وَلَا بِكْرٌ عَوَانٌۢ بَيْنَ ذَٰلِكَ ۖ فَٱفْعَلُوا۟ مَا تُؤْمَرُونَ ﴾

“Said they: "Pray on our behalf unto thy Sustainer that He make clear to us what she is to be like." [Moses] replied: "Behold, He says it is to be a cow neither old nor immature, but of art age in-between. Do, then, what you have been bidden!"”

These Verses show how the Israelites were disposed to disobedience, and how this inclination expressed itself in different forms. The Hadith says that if these people had obeyed Allah's commandment without raising so many doubts and asking unnecessary questions, such strict condition would not have been imposed on them, and the sacrifice of any cow whatsoever would have been accepted.