Phaladeepika
गुरुस्थितसुतस्थाने यावतां विद्यते फलम् । शत्रुनीचग्रहं स्यक्त्वा शेषास्तस्यात्मजाः स्मृताः ॥ १०॥
Find how many planets have contributed benefic dots in the 5 th house from Jupiter in Jupiter's Ashtakavarga. From that number take away as many benefic dots of planets as are occupying inimical or depression houses. The remainder will represent the number of children one may have.
english translation
gurusthitasutasthAne yAvatAM vidyate phalam । zatrunIcagrahaM syaktvA zeSAstasyAtmajAH smRtAH ॥ 10॥
hk transliteration by Sanscript