Om namah Shankaraya Om

 सतीखन्डे संध्याचरित्रवर्णनं नाम पञ्चमोऽध्याय

Sandhya character description Chapter 5

वसिष्ठ उवाच |

Vasishtha said (to Sandhya)

मन्त्रेणानेन देवेशं शंभुं भज शुभानने |

तेन ते सकलावाप्तिर्भविष्यति न संशयः || 62 ||

ॐ नमः शङ्करायेति ओमित्यन्तेन संततं |

With this mantra "Om namah Shankaraya Om" continuously worship Shambhu, the God of the Devas with (your) auspicious mouth. With that you will no doubt get everything.