Brihat Parashara Hora Shastra
पुत्रदारसुखं चैव चतुष्पाज्जीवलाभकृत् । दुश्चिक्ये षष्ठलाभे वा केतुर्दाये सुखं दिशेत् ॥ ७४॥
If Ketu is in Sahaj, Ari, or Labh, there will be in his Dasha acquisition of a kingdom, good relations with friends and opportunities for the acquisition of elephants.
english translation
putradArasukhaM caiva catuSpAjjIvalAbhakRt । duzcikye SaSThalAbhe vA keturdAye sukhaM dizet ॥ 74॥
hk transliteration by Sanscript