Skandapurana 5.160.17

5.160.17

tathā ca saptamīyukte ravervāre dvijottamāḥ ..
aṣṭottaraśataṃyāvatphalahastaḥ karoti yaḥ ..
pradakṣiṇāṃ ca sadbhaktyā sa labhedvāṃchitaṃ phalam ..17..

Moreover, on a Sunday joined with a seventh lunar day, O best of the twice-born,
whoever, holding a fruit in hand, performs circumambulation
one hundred and eight times with genuine devotion, obtains the desired fruit.