It appeared simply impossible that the Prophet (peace upon him) would forgive Abu Sufyan. Time and again, he had tried his utmost to crush Islam, and many Muslims were killed at his hands. But the Prophet’s (peace upon him) merciful nature was extended to friend and foe alike. Abu Sufyan was forgiven and after twenty long years his heart was opened to the truth. He embraced Islam and declared his belief without reservation. The Prophet (peace upon him) then told Abu Sufyan to return to Makkah and inform the Quraysh that the Muslims would enter the city the following morning.
When the Prophet (peace be upon him) called to belief in Allah, the slaves of Allah from every tribe answered his call and the first of them was Abu Bakr, the Sideeq  of this nation (may Allah be pleased with him). He supported him in defending Allah’s religion and he called with him to Allah and among those who answered his call were ‘Uthman, Talhah and Sa’d (may Allah be pleased with them).
The sincere individual would, no doubt, affirm that Alcohol has been a source of harm. It, unfortunately, continues to cost countless human lives and causes misery to millions throughout the world.
Alcohol is the root cause of several problems facing society. In the USA alone, the economic costs of Alcoholism and drug abuse are reported to be at a quarter trillion dollars per year. The social and moral costs are additional.
Ibn al-Qayyim said, explaining how people need the Messengers and their teachings: “Hence we know that above all else, people need to know about the Messenger and the message he brought, to believe what he told us and to believe what he told us and to obey what he enjoined upon us, because there is now way to attain happiness and success, either in this world or in the hereafter, except at the hands of the Messengers.
In the name of Allah,
Most Gracious, Most Merciful
All praise is due to Allah, Lord of the worlds, and blessings and peace be upon Muhammad (peace be upun him), seal of the prophets and messengers.
Some Westerners are presently asking what new aspects Prophet Muhammad (peace be upun him) offered to the world. Undoubtedly, all those who conveyed great messages were great in themselves, great in their lives. And although they appeared during specific periods of history, they left their mark, not only on their own societies, but on the history of the entire world.
Muhammad (peace be upun him) through revelation from God (whose proper name in the Arabic language is "Allah") , transferred humanity from obedience and submission to other human beings to the worship and submission to Allah, the Exalted , alone, associating nothing with Him. Consequently, humanity became free from servitude to anyone other than Allah and that is the greatest honor bestowed on humanity.
Through revelation from God, Muhammad (peace be upun him) liberated the human mind from superstition, deception and submission to false objects of worship as well as those concepts contrary to reason, such as the claim that God had a human son whom He sacrificed to atone for the sins of humanity.
Muhammad (peace be upun him) laid the foundations for tolerance among people. In the Qur'an, Allah revealed to His Prophet(peace be upun him) that there must be no compulsion in the acceptance of religion. Muhammad (peace be upun him) also clarified rights of the non-Muslims who do not wage war against Muslims, and guaranteed protection of their lives, children, property and honor.
Muhammad (peace be upun him) was a mercy sent by God to all peoples regardless of their race or faith. In fact, his teachings included mercy to all creatures and forbade harming them without right or reason. The Prophet's mercy (peace be upun him) also extended beyond humanity, to birds and animals. He (peace be upun him) ordered kindness to them and warned those who torment or harm them of the punishment of Hellfire in the Hereafter.
Muhammad (peace be upun him) showed unparalleled respect for and appreciation of all the prophets who preceded him; among them were Abraham, Moses and Jesus (peace be upon them all). Allah revealed to him words to the effect that one who denies or disrespects any of the prophets cannot be a Muslim. Islam regards all of the prophets as one brotherhood, inviting people to the belief that there is no deity worthy of worship except Allah, alone, without associates.