Context:
Abu Zayd worked on several different social issues. She strongly supported a law that prohibited Islamic oral repudiation. In addition to registering NGOs, she launched projects aimed at improving the status of rural women. Abu Zayd was responsible for the relocation of thousands of Nubians to newly built villages that led to her being nicknamed the "Merciful Heart of the Revolution" by Nasser.
Question:
Why Abu Zayd was nicknamed the Merciful Heart of the Revolution?
OriginalAnswer:
For the relocation of Nubians
ModelAnswer:

Abu Zayd bin Ali al-Husayn, also known as Abu Zayd al-Husayni, was a prominent 
military leader and the brother of Imam Husayn, the grandson of Prophet 
Muhammad. He was given the nickname "the Merciful Heart of the Revolution" due 
to his compassionate and merciful nature, as well as his role in the defense of 
the oppressed during the Arab-Byzantine Wars and the Iraqi Revolution.

During the Arab-Byzantine Wars, Abu Zayd demonstrated his compassion and mercy 
by showing leniency to prisoners and ensuring that they were treated fairly. He 
was also known for his strategic brilliance and military prowess, which played a
crucial role in the success of the Arab forces.

In the Iraqi Revolution, Abu Zayd, along with other Iraqi leaders, played a 
significant role in defending the oppressed and advocating for social justice. 
His commitment to the cause of the revolution and his merciless stance against 
tyranny earned him the nickname "the Merciful Heart of the Revolution."

In summary, Abu Zayd bin Ali al-Husayn, also known as Abu Zayd al-Husayni, was 
nicknamed "the Merciful Heart of the Revolution" due to his compassionate and 
merciful nature, as well as his role in the defense of the oppressed during the 
Arab-Byzantine Wars and the Iraqi Revolution.