Vijnana Bhairava Tantra Verse 156

Sanskrit

षट्शतानि दिवा रात्रौ सहस्राण्येकविंशतिः।
जपो देव्याः समुद्दिष्टः सुलभो दुर्लभो जडैः

Transliteration

japo devyāḥ samuddiṣṭaḥ sulabho durlabho jaḍaiḥ

Translation

This japa of the Devi which was previously indicated, (being repeated) twenty-one thousand six hundred times during the day and night, is easily available and difficult only for the ignorant.