﴿ قَالُوا۟ ٱدْعُ لَنَا رَبَّكَ يُبَيِّن لَّنَا مَا هِىَ إِنَّ ٱلْبَقَرَ تَشَٰبَهَ عَلَيْنَا وَإِنَّآ إِن شَآءَ ٱللَّهُ لَمُهْتَدُونَ ﴾

“Said' they: "Pray on our behalf unto thy Sustainer that He make clear to us what she is to be like, for to us all cows resemble one another; and then, if God so wills, we shall truly be guided aright!"”

Please check ayah 2:71 for complete tafsir.