“Micchāmi Dukkaḍaṃ” is said on the annual Day of Forgiveness:

• Shwetambar tradition: on Samvatsari (the last day of Paryushan), especially after the Samvatsari Pratikraman.
• Digambar tradition: on Kshamavani (the concluding day of Das‑Lakshan Parva).

Meaning: “May any harm caused by me be fruitless; I seek forgiveness from all beings.”