Brihat Parashara Hora Shastra
द्वितीये द्वादशे वर्षे पितुर्मरणमादिशेत् । भाग्याद्रन्ध्रगते राहौ भाग्याद्भाग्यगते रवौ ॥ १७॥
Should Rahu be in the 8th from Dharm, as Sūrya is in the 9th from Dharm, death of father will take place in the 16th, or the 18th year of the native.
english translation
dvitIye dvAdaze varSe piturmaraNamAdizet । bhAgyAdrandhragate rAhau bhAgyAdbhAgyagate ravau ॥ 17॥
hk transliteration by Sanscript