«الحجاج والعمار وفد الله دعاهم فأجابوه وسألوه فأعطاهم»
The Prophet (peace and blessings be upon him) said:
"Those performing Hajj and those performing Umrah are the guests of Allah. He called them and they answered Him, and they asked of Him and He gave them."
Hadith Referenceصحیح الجامع الصغیر / حرف الحاء / 3173