Hazrat Abu Bakr bin Amr bin Utbah (may Allah be pleased with him) narrates that during the time of Hazrat Muawiyah (may Allah be pleased with him), people were once sent for jihad by compulsion. Hazrat Muawiyah (may Allah be pleased with him) wrote in a letter to Hazrat Jarir bin Abdullah (may Allah be pleased with him) that we are not sending you and your son by force. Hazrat Jarir bin Abdullah (may Allah be pleased with him) replied in writing that I have pledged allegiance at the blessed hand of the Messenger of Allah (peace and blessings be upon him) to obey the leader and to wish well for the Muslims. If we are sent, we will go; otherwise, we will not provide strength to those who go.