Brihat Parashara Hora Shastra
पञ्चाशद्वत्सरे प्राप्ते जनकस्य मृतिर्भवेत् । भाग्यात् सप्तमगे सूर्ये भ्रातृसप्तमगस्तमः ॥ २२॥
If Sūrya is in the 7th from Dharm Bhava, as Rahu is in the 7th from Sahaj Bhava, the 6th, or 25th year of the native will be fatal for father.
english translation
paJcAzadvatsare prApte janakasya mRtirbhavet । bhAgyAt saptamage sUrye bhrAtRsaptamagastamaH ॥ 22॥
hk transliteration by Sanscript