There is a Sign and a Blessing in Cattle

Allah mentions the blessing that He has bestowed upon His creation by subjugating these cattle for their use.

فَهُمْ لَهَا مَـلِكُونَ

In verse 71, it was said: أَوَلَمْ يَرَ‌وْا أَنَّا خَلَقْنَا لَهُم مِّمَّا عَمِلَتْ أَيْدِينَا أَنْعَامًا فَهُمْ لَهَا مَالِكُونَ (Did they not see that We have created for them cattle, among things made (directly) by Our hands, then they are their owners?). Along with the mention of the Divine novelty and beneficence in the creation of the cattle in this verse, yet another great favor of Allah Ta’ ala has been identified. It has been said that man has played no role in the creation of these cattle. Allah Ta’ ala made them, exclusively, by His own hands, so to say. Then, He not only let human beings benefit from these cattle with His permission, but also made them their owners, so that they could dispose them off in any manner they chose - use them to their advantage or sell them off and use the money thus acquired.

Gift of God - not capital or labor - is the real wisdom behind the ownership of things