Brihat Parashara Hora Shastra
स्वस्थानं सप्तमं नैवं पदं भवितुमर्हति । तस्मिन् पदत्वे विज्ञेयं मध्यं तुर्यं क्रमात् पदम् ॥ ४॥
Special Exceptions. The same Bhava, or the 7th from it does not become its Pad. When the Pad falls in the same Bhava, the 10th therefrom be treated, as its Pad.
english translation
svasthAnaM saptamaM naivaM padaM bhavitumarhati । tasmin padatve vijJeyaM madhyaM turyaM kramAt padam ॥ 4॥
hk transliteration by Sanscript