Brihat Parashara Hora Shastra
भ्रातृभे बुधसंयुक्ते तदीशे चन्द्रसंयुते। कारके मन्दसंयुक्ते भगिन्येकाग्रतो भवेत्॥ ७॥
Number of Brothers and Sisters. If Budh is in Sahaj Bhava, while Sahaj‟s Lord and Candr are together, as the indicator (Mangal) joins Śani, the effects are: there occurred the birth of an elder sister
english translation
bhrAtRbhe budhasaMyukte tadIze candrasaMyute। kArake mandasaMyukte bhaginyekAgrato bhavet॥ 7॥
hk transliteration by Sanscript