Shiva Purana
इत्येतत्सुमहद्दुःखं पापिनां परिकीर्तितम् ॥ केवलं धर्मबुदीनां सप्तमासैर्भवस्सदा ॥ ३५॥
This type of misery is for the sinners. But those of virtuous intellect take birth within seven months.
english translation
ityetatsumahadduHkhaM pApinAM parikIrtitam ॥ kevalaM dharmabudInAM saptamAsairbhavassadA ॥ 35॥
hk transliteration by Sanscript