The Dasavara (Thatsaphon), the ten blessings, is the first episode of the 13 episodes of the Vessantara Jataka which contains 16 fascicles. While residing in Kapilavatthu the Buddha delivered a sermon to his father, King Suddhadana, Princess Sakya and the Sangha. He described his last existence as Prince Vessantara and the story of his mother, Queen Phusati who was the queen of Indra. Before finishing her time in heaven for being born as a human being in the world, she asked Indra for the ten blessings and he gave her the ten blessings by pouring holy water on the palms of the queen’s hands.
Colophon:
[The writing of this manuscript was completed] in CS 1280, a poek sanga year, on the twelfth waxing-moon day of the eighth [lunar] month, a Monday as the Mon say, at the time of the evening drum. Monk Sīvijaya wrote the manuscript so that the Teachings of the Budha could last until [the end of] 5,000 years or as long as the life of this manuscript. I wish to definitely become a Buddha.
Sabbadānaṃ dhammadānaṃ jināti nibbānaṃ paccayo hotu me niccam.
Other notes:
The date corresponds to Tuesday, 7 May 1918 (1280 Vaisakha 27).