Answer

In the Digambar Jain tradition, the special thread commonly used in religious practice is called Sūtra or Rakṣā-sūtra.

It is usually a cotton thread used during certain Jain rituals, pūjā, and religious ceremonies.

Explanation

Digambar Jains generally do not wear a sacred thread like the Hindu janeu/yajnopavīt as a compulsory religious identity.

However, a thread may be used in rituals such as:

• Rakṣā-sūtra — a protective religious thread tied after worship or rituals
• Mauli / Kalāwā — a cotton thread sometimes tied on the wrist during religious ceremonies
• Sūtra — thread used symbolically in pūjā procedures

Spiritual Understanding

In Jain Dharma, the thread itself is not the main source of purity or protection. True spiritual protection comes from:

• Samyak Darshan — right faith
• Samyak Jñān — right knowledge
• Samyak Chāritra — right conduct
• Ahimsā, self-control, and purity of thoughts

Takeaway

Digambar Jains may use a cotton rakṣā-sūtra or mauli in rituals, but Jain Dharma gives greater importance to inner purity and right conduct than to any external thread.