sarbloh granth sahib also explains as Guru khalsa at the physical and 3rd for of patshahi 10vi if you say a collection of money to be in khalsa panth then you are mistaken , there is not if or but on this, khalsa panth are the only ones for meetings 4 muhe toh kya hua jivat kai hazar also there is khalsa mahima , we are not talking about spirituality aspect here, ofcourse it has a play but only little one has to be amritdhari for sarbat khalsa meeting , but if a panthic meeting is held then nirmale and other jathebandiyan are welcomed, but patit money are strict no no