Jami` at-Tirmidhi, Book 39, Hadith 2791 (In-Book) ⓘ
'Abdullah bin 'Amr bin Al-'As narrated that the Messenger of Allah said: "If a pellet like this one, and he pointed to one like Al-jumjumah were to be dropped from the heavens to the earth – and it is the distance of traveling five hundred years it would reach the earth before the night-fall. But if it were dropped from the top of the chain it would travel for forty years, day and night, before it would reach its foundation or bottom.” (Hasan)
حَدَّثَنَا سُوَيْدُ بْنُ نَصْرٍ، أَخْبَرَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا سَعِيدُ بْنُ يَزِيدَ، عَنْ أَبِي السَّمْحِ، عَنْ عِيسَى بْنِ هِلاَلٍ الصَّدَفِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرِو بْنِ الْعَاصِي، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَوْ أَنَّ رُصَاصَةً مِثْلَ هَذِهِ وَأَشَارَ إِلَى مِثْلِ الْجُمْجُمَةِ أُرْسِلَتْ مِنَ السَّمَاءِ إِلَى الأَرْضِ وَهِيَ مَسِيرَةُ خَمْسِمِائَةِ سَنَةٍ لَبَلَغَتِ الأَرْضَ قَبْلَ اللَّيْلِ وَلَوْ أَنَّهَا أُرْسِلَتْ مِنْ رَأْسِ السِّلْسِلَةِ لَصَارَتْ أَرْبَعِينَ خَرِيفًا اللَّيْلَ وَالنَّهَارَ قَبْلَ أَنْ تَبْلُغَ أَصْلَهَا أَوْ قَعْرَهَا " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ إِسْنَادُهُ حَسَنٌ صَحِيحٌ . وَسَعِيدُ بْنُ يَزِيدَ هُوَ مِصْرِيٌّ وَقَدْ رَوَى عَنْهُ اللَّيْثُ بْنُ سَعْدٍ وَغَيْرُ وَاحِدٍ مِنَ الأَئِمَّةِ .
also referenced under: Hadith 2588 (Reference) & Volume 4, Book 37, Hadith 2588 (DarusSalam)