May Lord Keśava protect me with His club in the first portion of the day, and may Govinda, who is always engaged in playing His flute, protect me in the second portion of the day. May Lord Nārāyaṇa, who is equipped with all potencies, protect me in the third part of the day, and may Lord Viṣṇu, who carries a disc to kill His enemies, protect me in the fourth part of the day.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
मां केशवो गदया प्रातरव्या- द्गोविन्द आसङ्गवमात्तवेणुः । नारायणः प्राह्ण उदात्तशक्ति- र्मध्यन्दिने विष्णुररीन्द्रपाणिः
māṃ keśavo gadayā prātaravyā- dgovinda āsaṅgavamāttaveṇuḥ | nārāyaṇaḥ prāhṇa udāttaśakti- rmadhyandine viṣṇurarīndrapāṇiḥ
SB 6.8.20