Matsya Purana 77.18

77.18

imamanaghaṃ yaḥ śrṛṇoti smaredvā paripaṭhatīha sureśvarasya loke.
matimapi ca dadāti so'pi devairamaravadhūjanamālayā'bhipūjyaḥ.. 77.17 ..

Here ends the seventy-seventh chapter describing the Sarkarâ Saptamî or the fast followed by gift of sugar.

This Śarkarâ Saptamî is said to give the same benefit as Aśvamedha sacrifice. It removes all diseases and makes the sons and the grandsons thrive. One who observes this fast with unflinching devotion, gets bliss. He passes his days for one Kalpa in heaven, and then attains emancipation. One who hears, listens, or reads about this, goes to the region of the Sun. One who advises others to observe this ordinance, is also venerated by Devas and Heavenly damsels, and passes his days in heaven.—15-17.