There are three types of people who have left their homes solely for the purpose of performing an act of worship for the sake of Allah alone. They are like Allah’s guests. Therefore, as soon as they leave their homes, they are under the special protection and care of Allah.
The Prophet, peace be upon him, said:
“The person who is fighting in the way of Allah, and the person going for Hajj, and the person going for ‘Umrah are (like) Allah’s delegates. Their du’as are responded to, and their requests are given.” (Recorded in Ibn Majah)
Such is the Mercy and Generosity of Allah, that He considers these three people to be like His delegates, and treats them with the utmost kindness, granting their every request.