Ratnasambhava mantra and seed syllable

ra tna saṃ bha va

Ratnasambhava is the yellow Buddha of the southern quarter. His name means "jewel born". His emblem is the ratna jewel, symbolising the Bodhicitta, the highest value of the Buddhist. His mudra is dana or generosity, the most fundamental Buddhist virtue. He represents, therefore, both the highest values and virtues of Buddhism.

He is also associated with the Tantric rite of increase, and with prosperity generally.

Ratnasambhava first appears, along with Amoghasiddhi, in the Sarvatathāgata Tattvasaṃgraha Tantra in the late 7th or early 8th century.

For more on the role of Ratnasambhava, and his partner Amodhasiddhi, in the Mandala of the Jinas try my essay: Ratnasambhava quest que cest?

mandala of the jinas

position in mandala	south
Colour	yellow
Family	Ratna
Mudra	giving
Wisdom	Wisdom of sameness
Emblem	jewel
Consort/prajñā	Māmakī

Other Jinas: Vairocana | Akṣobhya | Amitābha | Amoghasiddhi

Bodhisattvas: Ākāśagarbha

bīja

Ratnasambhava's seed syllable is traṃ.

	त्रँ
traṃ in Siddhaṃ script			traṃ in Tibetan - Uchen script

mantra

Siddhaṃ

Devanāgarī

ओँ र त्न स न्भ व त्रँ

Tibetan - Uchen

Transliteration

oṃ ra tna saṃ bha va traṃ

oṃ ratnasambhava traṃ

Ratnasambhava