Imam Ali Say Only Allah Knows Who Will be in the Company of the Prophet (pbuh)

[Rationalist]

Then Amir al -mu'minin said:

Woe to you (the people of Basrah’s) inhabited streets and decorated houses which possess wings like the wings of vultures and trunks like the trunks of elephants; they are the people from among whom if one is killed he is not mourned and if one is lost he is not searched for. I turn this world over on its face, value it only according to its (low) value, and look at it with an eye suitable to it.

ثمّ قال (عليه السلام): وَيْلٌ لِسِكَكِكُمُ الْعَامِرَةِ، وَدُورِكُمُ الْمُزَخْرَفَةِ الَّتِي لَهَا أَجْنِحَةٌ كَأَجْنَحَةِ النُّسُورِ، وَخَرَاطِيمُ كَخَرَاطِيمِ الْفِيَلَةِ، مِنْ أُولئِكَ الَّذِينَ لاَ يُنْدَبُ قَتِيلُهُمْ، وَلاَ يُفْقَدُ غَائِبُهُمْ. أَنَا كَابُّ الدُّنْيَا لِوَجْهِهَا، وَقَادِرُهَا بِقَدْرِهَا، وَنَاظِرُهَا بِعَيْنِهَا.
A part of the same sermon referring to the Turks (Mongols)
منه: ويومئ به إلى وصف الاتراك
I 2 can see a people whose faces are like shields covered with rough-scraped skins. They dress themselves in silken and woollen clothes and hold dear excellent horses. Their killing and bloodshed shall take place freely till the wounded shall walk over the dead and the number of runners-away shall be less than those taken prisoner:

كَأَنِّي أَرَاهُمْ قَوْماً كَأَنَّ وَجُوهَهُمُ الْـمَجَانُّ الْمُطَرَّقَةُ، يَلْبَسُونَ السَّرَقَ وَالدِّيبَاجَ، وَيَعْتَقِبُونَ الْخَيْلَ الْعِتَاقَ، وَيَكُونُ هُنَاكَ اسْتِحْرَارُ قَتْل،حَتَّى يَمْشِيَ الْـمَجْرُوحُ عَلَى الْمَقْتُولِ، وَيَكُونَ الْمُفْلِتُ أَقَلَّ مِنَ المَأْسُورِ!
One of his companions said to him: O Amir al-mu'minin, you have been given knowledge of hidden things. Whereupon Amir al-mu'minin laughed and said to the man who belonged to the tribe of Banu Kalb:

فقال له بعض أصحابه: لقد أَعطيت يا أميرالمؤمنين علم الغيب! فضحك (عليه السلام)، وقال للرجل ـ وكان كلبياً ـ :
O brother of Kalb! This is not knowledge of hidden things (`ilmu'l-ghayb), 3 these matters have been acquired from him (namely in Prophet) who knew them. As regard knowledge of hidden things, that means knowledge of the Day of Judgement, and the things covered by Allah in the verse:

“Verily, Allah is He with Whom is the knowledge of the Hour; He sends down the rain, and He knows what is in the wombs. No soul knows what it will earn tomorrow, and no soul knows in what land it will die..” (Qur'an, 31:34)

Therefore, Allah alone knows what is there in the wombs, whether male or female, ugly or handsome, generous or miserly, mischievous or pious, and who will be the fuel for Hell and who will be in the company of the Prophets in Paradise. This is the knowledge of the hidden things which is not known to anyone save Allah. All else is that whose knowledge Allah passed on to His Prophet and he passed it on to me, and prayed for me that my bosom may retain it and my ribs may hold it.