The affix liṅ (Benedictive) comes in all tenses when used with the words yacca and yatra and the sense implied is that of 'wonder'.,
The word चित्रीकरणं means 'wonder, astonishment, strangeness &c'. This debars all the other tense-affixes. Thus यच्च or यत्र तत्र भवान् वृषलं याजयेत् आश्चर्यमेतत् 'this is a wonder that you should sacrifice for a Sudra'.
When the non-completion of the action is indicated, the Conditional is employed under the rules 3.3.139, 3.3.140 and 3.3.141. Thus आश्चर्यमेतत् यच्च or यत्र त्वं शूद्रं याजयेः or अयाजयिष्यः 'it is a wonder that you should (have attempted to) perform a sacrifice for a Sudra'; आश्चर्यमेतत् यच्च or यत्र त्वं शूद्रं अयाजयिष्यः 'it is a wonder that you should (hereafter attempt to) make a Sudra perform a sacrifice'.,