Concept:
In Buddhist
tradition, physical relics of the Buddha are known as Śarīra-dhātu.
These are categorized into three types: Śārīrika (body parts),
Pāribhogika (objects used by him), and Uddeśika (symbols like
images). Among the physical relics (Śārīrika), there is a distinction
between those obtained after his Mahāparinirvāṇa (cremation) and those given by
the Buddha himself while he was still alive. The "most ancient" refers to the
relics that were first separated from his body and venerated by devotees during
his lifetime.
Step 1: Historical context of the first relics.
According
to the Vinaya Piṭaka and various Jātaka stories, the very
first physical relics were given just seven weeks after the Buddha attained
Enlightenment (Bodhi) under the Bodhi tree. While the Buddha was
sitting under the Rājāyatana tree, two merchant brothers named Trapusa
and Bahalika (from the region of Balkh) encountered him. They offered the
Buddha his first meal after enlightenment—honey and rice cakes.
Step 2: The gift of the hair relics (Keśa-dhātu).
Impelled by deep faith, the merchants requested the Buddha for an object to
worship upon their return to their homeland. In response, the Buddha rubbed his
head and gave them eight strands of his hair (Keśa). These are
considered the first and most ancient relics because they were bestowed by the
living Buddha himself, long before his death and subsequent cremation. The
Shwedagon Pagoda in Myanmar is famously said to house these original eight hair
relics.
Step 3: Comparing with other relic types.
Let us analyze
why the other options are not the "most ancient":
• (2) Nakha (nail): Although the Buddha is said to have given nail
clippings as relics in some traditions, they are usually mentioned alongside or
after the hair relics. The hair relics given to Trapusa and Bahalika remain the
primary "first" recorded instance.
• (3) Danta (tooth) and (4) Asthi
(bone): These are "post-mortem" relics. They were collected from the funeral
pyre after the Buddha's Mahāparinirvāṇa at Kushinagar (c. 483 BCE). Since these
were obtained at the very end of his life, they are chronologically much later
than the hair relics given shortly after his enlightenment (c. 528 BCE).
Step 4: Conclusion on Chronology.
The hair
(Keśa) relics predate the cremation relics (Asthi and
Danta) by approximately 45 years. Because they represent the first
instance of the Buddha distributing parts of his physical body for the purpose
of veneration, they are recognized as the most ancient.