Brihat Parashara Hora Shastra
एवं सर्वं समालोच्य जातकस्य फलं वदेत् ॥ १६६॥
The prediction should be made after calculating the Dashas in this manner.
english translation
evaM sarvaM samAlocya jAtakasya phalaM vadet ॥ 166॥
hk transliteration by Sanscript