Al-Kāfi - Volume 1 > The Issue of Disappearance (of the twelfth Imam (a.s.) from Public Sight
Hadith #23

23ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَعْدِ بْنِ عَبْدِ الله عَنْ أَحْمَدَ بْنِ الْحَسَنِ عَنْ عُمَرَ بْنِ يَزِيدَ عَنِ الْحَسَنِ بْنِ الرَّبِيعِ الْهَمْدَانِيِّ قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ عَنْ أُسَيْدِ بْنِ ثَعْلَبَةَ عَنْ أُمِّ هَانِئٍ قَالَتْ لَقِيتُ أَبَا جَعْفَرٍ مُحَمَّدَ بن علي (عَلَيْهما السَّلام) فَسَأَلْتُهُ عَنْ هَذِهِ الايَةِ فَلا أُقْسِمُ بِالْخُنَّسِ الْجَوارِ الْكُنَّسِ قَالَ الْخُنَّسُ إِمَامٌ يَخْنِسُ فِي زَمَانِهِ عِنْدَ انْقِطَاعٍ مِنْ عِلْمِهِ عِنْدَ النَّاسِ سَنَةَ سِتِّينَ وَمِائَتَيْنِ ثُمَّ يَبْدُو كَالشِّهَابِ الْوَاقِدِ فِي ظُلْمَةِ اللَّيْلِ فَإِنْ أَدْرَكْتِ ذَلِكِ قَرَّتْ عَيْنُكِ.

23. A number of our people has narrated from Sa‘d ibn ‘Abdallah from Ahmad ibn al-Hassan from ‘Umar ibn Yazid from al-Hassan ibn al-Rabi ‘ al-Hamdani who has said that Muhammad ibn Istaq narrated to us from ’Usayd ibn Tha‘laba from ’Umm Hani who has said the following. “Once I met abu Ja’far Muhammad ibn Ali (a.s.) and asked him about he meaning of “I do not (need to) swear by the orbiting (81:15) stars which are visible during the night (81:16) and sit during the day,. “. (81:17)” The Imam (a.s.) said, “Al-Khunnas, refers to the imam who will disappear in his time when the knowledge about him will be cut off from people in the year two hundred sixty. Then he will reappear like a shooting star in the dark night. If you will attain such time it will light up your eyes with delight.”