Skandapurana 5.224.15

5.224.15

tataḥ sapiṃḍīkaraṇaṃ vatsarā dūrdhvataḥ sthitam ..
vṛddhirvā''gāminī cetsyāttadārvāgapi kārayet .. 15 ..

Thereafter, the sapiṇḍīkaraṇa is prescribed after a year; / or, if an auspicious increase (vṛddhi) is impending, one should cause it to be done even prior [to that]. / 15