Devibhagavatapurana 11.24.52

11.24.52

śataṃ śataṃ ca saptāhamapamṛtyuṃ vyapohati |
kṣīrāhāro japenmṛtyoḥ saptāhādvijayī bhavet ||

That man can conquer death who can remain for one week living on milk only and who performs during that time hundreds, and hundreds of Homas and repeats the Gâyatrî, controlling his speech. If anybody can fast three nights and control his speech and repeat Gâyatrî he gets himself freed from the hands of Death; or totally immersed in water if he repeats Gâyatrî, he will be saved from the impending danger of death. If anybody repeats the Gâyatrî mantra for one month, taking his seat under a Bel tree or performs Homa with Bel fruit, root or leaves, he gets kingdoms. (Know all the Mantrams are electric in their effects). Similarly if anybody performs Homa with one hundred lotuses, he gets a foeless kingdom. So one becomes the lord of a village if one performs Homa with Yavâgu (barley gruel) and Sâlidhânya. If the Homa be performed with the fuel of Asvaththa tree, victory in battle is ensured and if the Homa be performed with the fuel of Âkanda tree, then victory everywhere is ensured. If one hundred Homas be performed extending a week with Vetasa tree’s leaves or fruits, dipped in milk and mixed with Pâyasa, the rainfall is ensured. Similarly if anybody repeats Gâyatrî for one week with his body upto navel immersed in water, the rainfall is ensured; on the contrary if the Homa be performed with ashes in water, then the cessation of heavy rainfall is ensured. The Homa with the fuel of Palâsa gives Brahmateja; Homa with the flowers of Palâsa gives everything desired. Homa with milk or drinking Brâhmarasa, charged with mantra, increases the intellect; and the Homa with ghee gives Buddhi (medhâ) (intelligence).