Karma Vipaka Samhita 35.10

गृहवित्तार्द्धभागं वै ब्राह्मणाय प्रदापयेत् ॥

He should give half of his house wealth to a brahmin. Then the sin goes. Have no doubt about this.

पूजयित्वा ततो देवि ततो दद्याद्विजात्मने ॥

Then, O Goddess, he should worship it and give it to a brahmin. In particular, he should do a hundred thousand japa (repeating a mantra) of the…

ततो भवति वै शुद्धः पूर्वपापान्न संशयः ॥

Then he becomes clean of the past sin, without doubt. A son is born, O Goddess, and illnesses end.