Al-Kāfi - Volume 1 > Setting-up a Time Limit for the Reappearance of the Twelfth Imam (a.s.) an Antipathetic Issue
Hadith #6

6ـ مُحَمَّدُ بْنُ يَحْيَى وَأَحْمَدُ بْنُ إِدْرِيسَ عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنِ السَّيَّارِيِّ عَنِ الْحَسَنِ بْنِ عَلِيِّ بْنِ يَقْطِينٍ عَنْ أَخِيهِ الْحُسَيْنِ عَنْ أَبِيهِ عَلِيِّ بْنِ يَقْطِينٍ قَالَ قَالَ لِي أَبُو الْحَسَنِ (عَلَيْهِ السَّلام) الشِّيعَةُ تُرَبَّى بِالامَانِيِّ مُنْذُ مِائَتَيْ سَنَةٍ قَالَ وَقَالَ يَقْطِينٌ لابْنِهِ عَلِيِّ بْنِ يَقْطِينٍ مَا بَالُنَا قِيلَ لَنَا فَكَانَ وَقِيلَ لَكُمْ فَلَمْ يَكُنْ قَالَ فَقَالَ لَهُ عَلِيٌّ إِنَّ الَّذِي قِيلَ لَنَا وَلَكُمْ كَانَ مِنْ مَخْرَجٍ وَاحِدٍ غَيْرَ أَنَّ أَمْرَكُمْ حَضَرَ فَأُعْطِيتُمْ مَحْضَهُ فَكَانَ كَمَا قِيلَ لَكُمْ وَإِنَّ أَمْرَنَا لَمْ يَحْضُرْ فَعُلِّلْنَا بِالامَانِيِّ فَلَوْ قِيلَ لَنَا إِنَّ هَذَا الامْرَ لا يَكُونُ إِلا إِلَى مِائَتَيْ سَنَةٍ أَوْ ثَلاثِمِائَةِ سَنَةٍ لَقَسَتِ الْقُلُوبُ وَلَرَجَعَ عَامَّةُ النَّاسِ عَنِ الاسْلامِ وَلَكِنْ قَالُوا مَا أَسْرَعَهُ وَمَا أَقْرَبَهُ تَأَلُّفاً لِقُلُوبِ النَّاسِ وَتَقْرِيباً لِلْفَرَجِ.

6. Muhammad ibn Yahya and Ahmad ibn Muhammad ibn ’Idris have narrated from Muhammad ibn Ahmad from al-Sayyari from al-Hassan ibn Ali ibn Yaqtin from his brother from his father Ali ibn Yaqtin who has said the following. “Abu al-Hassan (a.s.) said to me, ‘The Shi‘a have live on hopes for two hundred years.’” The narrator has said that Yaqtin said to his son, Ali ibn Yaqtin, “We did not have to worry. What was said to us came true. What is said to you has not come true yet” Ali then said to him, “What was said to you and what is said to us all come from one source except that good news for you have come true and you received it pure. It was just as was said to be. The good news for us has not yet come true. We thus, entertain ourselves with hopes. If we would be told that it will take place after two or three hundred years our hearts will harden and the masses will turn back from Islam. However, they have said that it will come very soon and in near future to encourage people about the coming of the relief.”