Final answer:
Prophets in Islam demonstrate God's love for humanity by providing guidance through messages of morality, charity, prayer, and fasting, as well as by advocating social justice and the welfare of the less fortunate.
Step-by-step explanation:
The prophets in Islam serve as a manifestation of God's (Allah's) love for humanity in several ways. Firstly, prophets are considered to be messengers who have been specifically chosen by God to guide humanity towards righteousness and deliver the divine message. This can be seen as a sign of love, as God does not leave humanity without guidance or a means to understand the divine will. The coming of prophets, such as Abraham, Moses, Jesus, and Muhammad, show God's continued concern for the spiritual and moral welfare of humanity.
Secondly, the principles taught by the prophets, which include morality, charity, prayer, and fasting, are all meant to purify individuals and communities, thereby bringing them closer to God. These instructions not only provide a clear path for believers to lead a righteous life, but they also benefit society as a whole by promoting social welfare and personal growth. Muhammad's teachings emphasized not only the oneness of God but also social justice and the importance of caring for the less fortunate, which can be seen as an expression of God's love and compassion for all of his creations.