The affix aṇ optionally comes in the sense of 'this is his congregation, mark, sign or hamlet' after the word śākala,
This debars वुञ् ॥ Thus शाकलेन प्रोक्तमधीयते = शाकलाः 4.3.101 and 4.2.64, शाकलानाम् संघः = शाकलः or शाकलकः 4.3.126 meaning 'a congregation, &c of the students of the science revealed by Sakala'.,