Shiva Purana
अपुत्रस्य गृहं शून्यमपुत्रस्यार्जनं वृथा॥ अपुत्रस्य तपश्छिन्नं नो पवित्रत्यपुत्रतः॥ ३२॥
The house of a sonless person is a void. His earnings are futile. His penance is split. It is not holy due to the want of a son.
english translation
aputrasya gRhaM zUnyamaputrasyArjanaM vRthA॥ aputrasya tapazchinnaM no pavitratyaputrataH॥ 32॥
hk transliteration by Sanscript