Is 'Ali (ra) from the nafs of the Prophet(saw)?

[Husayn]

Shias use the event of mubaahala, and the following verse to make this statement:


فَمَنْ حَاجَّكَ فِيهِ مِن بَعْدِ مَا جَاءَكَ مِنَ الْعِلْمِ فَقُلْ تَعَالَوْا نَدْعُ أَبْنَاءَنَا وَأَبْنَاءَكُمْ وَنِسَاءَنَا وَنِسَاءَكُمْ وَأَنفُسَنَا وَأَنفُسَكُمْ ثُمَّ نَبْتَهِلْ فَنَجْعَل لَّعْنَتَ اللَّـهِ عَلَى الْكَاذِبِينَ


Then whoever argues with you about it after [this] knowledge has come to you - say, "Come, let us call our sons and your sons, our women and your women, ourselves and yourselves, then supplicate earnestly [together] and invoke the curse of Allah upon the liars [among us]."

Qur'an 3:61

They say that because Allah (swt) used "ourselves", this must imply that 'Ali (ra) and Rasul Allah (saw) are the same soul.

Allah (swt) also said:

لَقَدْ جَاءَكُمْ رَسُولٌ مِّنْ أَنفُسِكُمْ عَزِيزٌ عَلَيْهِ مَا عَنِتُّمْ حَرِيصٌ عَلَيْكُم بِالْمُؤْمِنِينَ رَءُوفٌ رَّحِيمٌ

There has certainly come to you a Messenger from among yourselves. Grievous to him is what you suffer; [he is] concerned over you and to the believers is kind and merciful.

Qur'an 9:128

Here the term "from among yourselves" is used for all the people.

Were Rasul Allah (saw) and all the people from the same soul?