Sutra not related to Buddhism

The correct answer is d) Wheel Sutra.

Introduction:
Sutras are sacred texts in Buddhism and are considered to be the words of the Buddha. They contain teachings and principles that guide Buddhists towards enlightenment.

Sutras related to Buddhism:
a) Lotus Sutra - This sutra is one of the most important and influential sutras in Mahayana Buddhism. It teaches the concept of the Buddha-nature, which is the inherent potential for all beings to become enlightened.

b) Heart Sutra - This sutra is another important Mahayana sutra that teaches the concept of emptiness. It emphasizes the importance of wisdom in attaining enlightenment.

c) Diamond Sutra - This sutra is a key text in the Prajnaparamita literature and teaches the concept of non-duality. It emphasizes the importance of cultivating compassion and wisdom.

Sutra not related to Buddhism:
d) Wheel Sutra - This sutra is not related to Buddhism. It is a text from Hinduism, specifically from the Samkhya school of philosophy. It teaches the concept of purusha and prakriti, which are the two fundamental principles of the universe according to Samkhya philosophy.

Conclusion:
While the Lotus, Heart, and Diamond sutras are important texts in Buddhism that teach key concepts and principles, the Wheel Sutra is not related to Buddhism and is from the Samkhya school of Hinduism.