Sahih Muslim 2791
Sahih Muslim · Book 52: Characteristics of the Day of Judgment, Paradise, and Hell · The Resurrection And Description Of The Earth On The Day Of Resurrection
'A'isha reported:
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا عَلِيُّ بْنُ مُسْهِرٍ ، عَنْ دَاوُدَ ، عَنِ الشَّعْبِيِّ ، عَنْ مَسْرُوقٍ ، عَنْ عَائِشَةَ ، قَالَتْ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنْ قَوْلِهِ عَزَّ وَجَلَّ { يَوْمَ تُبَدَّلُ الأَرْضُ غَيْرَ الأَرْضِ وَالسَّمَوَاتُ} فَأَيْنَ يَكُونُ النَّاسُ يَوْمَئِذٍ يَا رَسُولَ اللَّهِ فَقَالَ " عَلَى الصِّرَاطِ " .
I asked Allah's Messenger (ﷺ) 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 that day? He said: They would be on the Sirat.