Al-Baqarah 2:68 قالوا ادع لنا ربك يبين لنا ما هي قال انه يقول انها بقرة لا فارض ولا بكر عوان بين ذالك فافعلوا ما تومرون ٦٨

They said, “Pray for us to your Lord that He makes it clear to us what sort (of cow) should she be.” He said, “He says she should be a cow neither too old, nor too young - of some middle age in between. Now, do what you are being asked to do.”