Brihat Samhita
युवराजस्याष्टम्यां परतस्त्रिषु पार्थिवस्य दोषकरः ॥ पुररोधो द्वादश्यां सैन्यक्षोभस्त्रयोदश्याम् ॥ ३४-२० ॥
If the halo should appear on the eighth day of the dark or bright half of a lunar month, the first prince will suffer; if on the ninth, tenth or eleventh day, the king will suffer; if on the twelfth day, the chief town will be besieged by the enemy, and if on the thirteenth day, there will be confusion and dismay in the army.
english translation
yuvarAjasyASTamyAM paratastriSu pArthivasya doSakaraH ॥ purarodho dvAdazyAM sainyakSobhastrayodazyAm ॥ 34-20 ॥
hk transliteration by Sanscript