Answer

In Jain Dharma, the 12th Sutra usually refers to the 12th Anga Agam, called:

Dṛṣṭivāda Anga also written as Drashtivada.

Explanation

The Jain Agams are traditionally divided into 12 Angas. The 12th Anga is known as Dṛṣṭivāda.

According to Jain tradition, Dṛṣṭivāda is no longer available in its complete original form. It is considered lost in the present time.

The 12 Angas are:

• Ācārāṅga
• Sūtrakṛtāṅga
• Sthānāṅga
• Samavāyāṅga
• Vyākhyāprajñapti / Bhagavatī Sūtra
• Jñātādharmakathā
• Upāsakadaśā
• Antakṛddaśā
• Anuttaraupapātikadaśā
• Praśnavyākaraṇa
• Vipākaśruta
• Dṛṣṭivāda

Spiritual Understanding

Dṛṣṭivāda is important because it is traditionally connected with deep knowledge of philosophy, viewpoints, and scriptural understanding. Its loss reminds Jains of the importance of preserving, studying, and practicing Dharma sincerely.

Takeaway

The 12th Jain Sutra/Anga is Dṛṣṭivāda, but according to Jain tradition, it is not available today in its complete original form.