Brihat Jataka
आप्योदयमाप्यग: शशी सम्यूर्ण: समवेक्षतेऽथवा ॥ मेषूरणबन्धुलग्नग: स्यात्सूति: सलिले न संशय: ॥ ५-९ ॥
If the Moon is situated in watery (zodiac signs), or full, or situated in the 10th, 4th, and the lagna aspecting the lagna in a watery (zodiac sign); the birth should be in the water, without a doubt.
english translation
ApyodayamApyaga: zazI samyUrNa: samavekSate'thavA ॥ meSUraNabandhulagnaga: syAtsUti: salile na saMzaya: ॥ 5-9 ॥
hk transliteration by Sanscript