Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: You will be gathered on one plain; all the people will be within the range of sight, and the caller will be able to make his voice reach all of them.
Tabarani recorded this narration, and its narrators are the narrators of the Sahih except for Rabah al-Nakha'i, who is thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البعث / 18358