It was a public boycott against Banu Hashim and Banu Abdul Muttalib because the Quraysh called on them to withdraw their support for Hazrat Muhammad (peace be upon him). The boycott lasted 3 years – the conditions were so severe and eventually the suffering of these people became so terrible that you could hear the children screaming from the pain of hunger. Many died of starvation and disease. The general mood in Mecca was a growing intolerance of what was happening – they began to discuss this miserable agreement and its inhumanity against the people they loved. The pact that the Quraysh clans had made because they boycotted Muhammad and blocked Muslims was maintained for three consecutive years. (The Life of Muhammad, Cairo, 1935) The next day, when people gathered, Zuhayr put on a dress and walked around the Kaaba seven times; Then he stepped forward and said, “O people of Mecca, are we going to eat and clothe while the Banu Hashim perish, unable to buy or sell? By God, I will not rest until this diabolical boycott document is torn apart! It is said that Abu Bakr RA, since he belonged to a noble and wealthy family, had a lot of wealth before the boycott. However, during the three years of the boycott, he spent so much money to buy food for the boycotts and bring it to them that he ended up being a poor man.  It is also reported that other Muslims, whenever they could, loaded their camels with supplies and left them at the borders of Shib-e Abu Talib. thus the boycotted Muslims were able to recover the resources. Thus, Muslims who were not part of the boycott did not use force or leave Mecca in the face of the persecution of the Gentiles, nor left the Prophet and his companions. On the contrary, they used wisdom and tried to provide all possible reliefs. They set a practical example of the Prophet`s word, in which he said: “The parable of believers in their affection, mercy and compassion for one body is that of one body.
When one limb hurts, the whole body reacts with insomnia and fever.  When the Banu Abdul Muttalib refused to boycott the Banu Hashim, they were also included in this ban. This shows how the Quraysh decided to adopt this strategy so that they could convince Muhammad`s followers (peace be upon him) to leave him. There were several Meccans who provided food to the boycotted people. Amon they are Hazrat Abu Bakr Siddique and Hazrat Usman because they were not included in the ban. It has become a source of great problems for Muslims. They were forced to make their second migration to an area called Shib Abi Talib or Shib Abi Hashim, where they were starving.  The boycott ended in 619, the year of mourning.
During the period of official ceremonies, Muslims were allowed to temporarily leave Shiites to buy, promote or invite others to Islam.  Prophet Muhammad (s) invited people at the time of Hajj in the first year of the boycott, which aggravated the polytheists. They came to Abu Talib and asked him to hand over the Prophet Muhammad(s) because they wanted to kill him. Abu Talib reacted violently and disappointed them.  Fearing that they would come to kill the prophet(s) in his sleep, he slept next to the prophet(s) and told one of his children to sleep on the other side of the prophet(s). Quraysh began a complete social boycott of the Banu Abdul Muttalib: they married, sat down, talked, did not visit anyone in the group until they agreed to hand over the Prophet (sallallahu alayhi wasallam) for execution. They wrote a physical agreement that was non-negotiable. There was a growing feeling among the Quraysh that what was happening was wrong. Abu Talib came to negotiate with Quraysh. He said that the Prophet (sallallahu alayhi wasallam) had done dua and that Allah had sent insects to the agreement that hung in leather in the Kaaba: they had eaten specifically wherever the name of Allah or Muhammad (sallallahu alayhi wasallam) was written. He asked them to bring the agreement: if what the Prophet (sallallahu alayhi wasallam) had reported was true, the boycott would be lifted. If it was wrong, he promised to extradite Muhammad (sallallahu alayhi wasallam) and they could do whatever they wanted with him.
However, the agreement was reached exactly as reported by the Prophet (sallallahu alayhi wasallam). The agreement was torn apart and people were invited to come back. The Prophet (sallallahu alayhi wasallam) made Dua against Mansoor bin Ikrimah, who wrote the boycott, and his hand was paralyzed. The siege of the Banu Hashim was lifted three years later in 619 AD, and the clan returned to the city. Ten years had passed since Muhammad, may God bless him and his bait Ahlul, proclaimed his mission for the first time. The boycott of the Quraysh had not produced the desired result. The members of the Banu Hashim were provocative and their morale was high. It was as unthinkable for them as at the beginning of the siege to hand Muhammad over to their darling to his enemies.  Ali Asghar Razwy, “The Economic and Social Boycott of the Banu Hashim,” Al-Islam.org, www.al-islam.org/restatement-history-islam-and-muslims-sayyid-ali-ashgar-razwy/economic-and-social-boycott-banu (accessed July 18, 2017). .