Shiva Purana
अत्रेर्भार्य्या चानसूया त्रीणि वर्षशतानि च ॥ मुशलेषु निराहारा सुप्त्वा शर्वात्ततस्सुतान् ॥ १८ ॥
Atri's wife Anasuya lived for three hundred years She slept fasting on the spears and then gave birth to her sons.
english translation
atrerbhAryyA cAnasUyA trINi varSazatAni ca ॥ muzaleSu nirAhArA suptvA zarvAttatassutAn ॥ 18 ॥
hk transliteration by Sanscript