Brihat Parashara Hora Shastra
सप्तमं नवमं चैव द्वादशं च मृतं वदेत्। शेषाः सहोदराः षड् वै भवेयुर्दीर्घजीवनाः॥ ११॥
Out of these two elders and the 3rd, the 7th, the 9 th and the 12th of the younger co-born will be shortlived, while six of the said twelve will be longlived.
english translation
saptamaM navamaM caiva dvAdazaM ca mRtaM vadet। zeSAH sahodarAH SaD vai bhaveyurdIrghajIvanAH॥ 11॥
hk transliteration by Sanscript