Fiqh-us-Sunnah Volume 5, Hajj and ‘Umrah, Fiqh 5.003.

Abu Hurairah reported that the Prophet (peace be upon him) said: “Pilgrims and those performing ‘Umrah are Allah’s guests; their prayers are answered and their supplications for forgiveness are granted. This is reported by Nasa’i, Ibn Majah, Ibn Khuzaimah and Ibn Hibban in their collections of Sahih hadith. In the last two we read: “And Allah’s guests are three: A pilgrim performing Hajj, one performing ‘Umrah, and a person who fights in the cause of Allah.”