حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ الْجَهْضَمِيُّ، حَدَّثَنَا بِشْرٌ، - يَعْنِي ابْنَ مُفَضَّلٍ - عَنْ أَبِي مَسْلَمَةَ، عَنْ أَبِي نَضْرَةَ، عَنْ أَبِي سَعِيدٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لاِبْنِ صَائِدٍ ‏"‏ مَا تُرْبَةُ الْجَنَّةِ ‏"‏ ‏.‏ قَالَ دَرْمَكَةٌ بَيْضَاءُ مِسْكٌ يَا أَبَا الْقَاسِمِ ‏.‏ قَالَ ‏"‏ صَدَقْتَ ‏"‏ ‏.‏

This hadith has transmitted on the authority of Abu Sa'id that Allah's Messenger (PBUH) asked Ibn Sa'id about the earth of Paradise. Thereupon he said: Abu'l-Qasim, It is like a fine white musk, whereupon he (the Holy Prophet) said: 'You have told the the truth. Translation Not Available

Book Ref: Sahih Muslim Book 54 Hadith 6997
Web Ref:  Sahih Muslim Book 41 Hadith 2928 a