Mudgalapurana 3.33.11

3.33.11

pūjayitvā gaṇādhīśaṃ tato'rghyaṃ tithaye nṛpa |
gaṇeśāya ca candrāya dātavyaṃ vratakāriṇā ||

Having worshipped the Gaṇādhyakṣa, an oblation should then be given to the lunar day, O King, / and to Gaṇeśa, and to the moon, by the performer of the observance.