Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · Signs, Planets, Birth
जातकम् १
वीर्याढ्यज्ञार्किसदृष्टैः कोशस्थावहवोगिनः ।सितारेज्यार्कचंद्रार्किज्ञांगेशोर्कैंदवोऽधिपाः ॥ ५८ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 58.
These may be seen by strong Mercury and Saturn. Then many beings are born in one sac. The lords of the months of the womb are these. Venus, Mars, Jupiter, the Sun, the Moon, Saturn, Mercury, the lagna (rising sign) lord, the Sun and the Moon.
Simple meaning: Strong Mercury and Saturn can give many in one birth. The ten womb months each have a planet lord.
मासानां तत्समं वाच्यं गर्भस्थस्य शुभाशुभम् ।
Each month of pregnancy goes well or badly by its lord. Mercury in a luck house can bring a deformed child.
आरार्की चेज्यभांशस्थौ सदंतोगर्भकस्तदा ।
Some planet places can give a child born with teeth, hunchbacked or lame.
पापैर्जडो विधौ गर्भः शुभदृष्टिविवर्जिते ।
Bad planets can make a child slow to learn. A late Capricorn lagna seen by Saturn, Moon and Sun gives a dwarf.