Muslim Shareef,Book 039, Number 6708:
Sahl b. Sa'd reported that Allah's Messenger (may peace be upon him) said: The people will be assembled on tee Day of Resurrection on a white plain with a reddish tinge like the loaf of white bread with no marks set up for anyone.
Book 039, Number 6709:
'A'isha reported: I asked Allah's Messenger (may peace be upon him) about the words of Allah, the Exalted and Glorious:" The day when the earth would be changed for another earth and Heaven would be changed for another Heaven (XiV. 48), (and inquired: ) (Allah's Messenger), where would the people be on tnat day? He said: They would be on the Sirit.
