Narrated Anas: The Prophet ﷺ saw a man driving a Badana (ie camel for sacrifice) and said to him, "Ride on it". The man said, "O Allah's Messenger ﷺ! It is a Badana". (The Prophet ﷺ repeated his order) and on the third or fourth time he said, "Ride it, (woe to you" or said: "May Allah be merciful to you).
The lesson here is that we should always be kind and merciful towards others, especially when giving orders or instructions. We should also remember that Allah is always merciful towards us no matter what mistakes we make in life.