Lady Aisha (may Allah be pleased with her) said, I asked: O Messenger of Allah! Shall we build a shaded structure for you in Mina? The Messenger of Allah (peace be upon him) said: "No, in Mina, whoever arrives first, that is his place."
Hadith Referenceسنن دارمي / من كتاب المناسك / 1976
Hadith Takhrijاس حدیث کی سند حسن ہے۔ دیکھئے: [أبوداؤد 2019] ، [ترمذي 881] ، [ابن ماجه 3006] ، [أبويعلی 4519]
Brief Explanation
(Commentary on Hadith 1975)
That is, the plain of Mina is endowed (waqf) for the pilgrims; it is not the property of any particular individual. Whoever arrives first and settles at a place, another person cannot displace him from there. By constructing a shelter, one establishes possession and right over a spot, so that another cannot settle there. Therefore, the Prophet sallallahu alayhi wa sallam did not permit this.