Charak Samhita
पुत्रस्यायतनं ह्येतद्गुणाश्चैते सुताश्रयाः। वाजीकरणमग्र्यं च क्षेत्रं स्त्री या प्रहर्षिणी ॥४॥
He gets these benefits through his progeny and this therapy is the means of begetting a healthy progeny.
english translation
putrasyAyatanaM hyetadguNAzcaite sutAzrayAH। vAjIkaraNamagryaM ca kSetraM strI yA praharSiNI ॥4॥
hk transliteration by Sanscript