Matsyapurana 141.19

141.19

rudrastu vatsarasteṣāṃ pañcābdā ye yugātmakāḥ
kālenādhiṣṭhitasteṣu candramāḥ sravate sudhām //

Now hear about the 5 years Agni is the Samvatsara, the Sun is the Parivatsara the Moon is Iḍvatsara the Wind is the Anuvatsara, the Rudra is the Vatsara These are the cycle of 5 years The Moon presiding over them, in due time, sheds ambrosia—17 18