Shiva Purana
तत्रैव ते हि शकुनाश्चत्वारो योगधर्मिणः ॥ योगभ्रष्टास्त्रयश्चैव देहत्यागकृतोऽभवन् ॥ ७ ॥
It was there itself that the four birds of Yogic rites and the three that fell from Yoga cast off their bodies.
english translation
tatraiva te hi zakunAzcatvAro yogadharmiNaH ॥ yogabhraSTAstrayazcaiva dehatyAgakRto'bhavan ॥ 7 ॥
hk transliteration by Sanscript