In Jainism, saamayik is a spiritual practice focused on achieving equanimity, self-restraint, and detachment from worldly affairs for a set period. Maintaining physical and mental purity is considered important before performing saamayik.

After passing stool, it is necessary to thoroughly cleanse oneself (both body and hands) before engaging in any religious activity, including saamayik. This is in accordance with the Jain emphasis on cleanliness and purity (shuddhi) before performing spiritual practices. Only after proper cleansing and, if possible, changing into clean clothes, can one perform saamayik.

In summary: Yes, you can do saamayik after passing stool, but only after bathing or thoroughly cleaning yourself to ensure physical purity as per Jain traditions.