عَنِ الْعَبَّاسِ قَالَ كُنْتُ عِنْدَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ ذَاتَ لَيْلَةٍ فَقَالَ ”انْظُرْ هَلْ تَرَى فِي السَّمَاءِ مِنْ نَجْمٍ“ قَالَ قُلْتُ نَعَمْ قَالَ ”مَا تَرَى“ قَالَ قُلْتُ أَرَى الثُّرَيَّا قَالَ ”أَمَا إِنَّهُ يَلِي هَذِهِ الْأُمَّةَ بِعَدَدِهَا مِنْ صُلْبِكَ اثْنَانِ فِي فِتْنَةٍ“
It is narrated from Sayyiduna Abbas (may Allah be pleased with him), he says: One night I was in the service of the Noble Prophet (peace and blessings be upon him), when he (peace and blessings be upon him) said: Do you see any star in the sky? I said: Yes. He (peace and blessings be upon him) said: What do you see? I said: I am seeing the Thurayya (Pleiades) stars. He (peace and blessings be upon him) said: From your progeny, in every era of tribulation, two men—equal to the number of the Thurayya stars—will rule over this Ummah.