Brihat Parashara Hora Shastra
स्त्रीग्रहो भ्रातृभावेशः स्त्रीग्रहो भ्रातृभावगः। भगिनी स्यात् तथा भ्राता पुंगृहे पुंग्रहो यदि॥ ४॥
Female and Male Co-born. If Sahaj‟s Lord is a female Grah, or, if Sahaj Bhava be occupied by female Grahas, one will have sisters, born after him. Similarly male Grahas and male Rāśis denote younger brothers. Should it be of mixed nature, co-born of both sexes will be obtained. These effects be declared after assessing the strength and weakness of the concerned.
english translation
strIgraho bhrAtRbhAvezaH strIgraho bhrAtRbhAvagaH। bhaginI syAt tathA bhrAtA puMgRhe puMgraho yadi॥ 4॥
hk transliteration by Sanscript