हे कृष्ण रक्षस्व माम्

कृष्णो रक्षतु नो जगत्त्रयगुरुः कृष्णं नमस्यामहम्
कृष्णेनामरशत्रवो विनिहताः कृष्णाय तस्मै नमः।
कृष्णादेव समुत्थितं जगदिदं कृष्णस्य दासोऽस्म्यहम्
कृष्णे तिष्ठति सर्वमेतदखिलं हे कृष्ण रक्षस्व माम्॥४४॥
kṛṣṇo rakṣatu no jagattrayaguruḥ kṛṣṇaṁ namasyāmaham
kṛṣṇenāmaraśatravo vinihatāḥ kṛṣṇāya tasmai namaḥ|
kṛṣṇādeva samutthitaṁ jagadidaṁ kṛṣṇasya dāso’smyaham
kṛṣṇe tiṣṭhati sarvametadakhilaṁ he kṛṣṇa rakṣasva mām||44||
May Krishna, the guru of the three worlds protect us. I bow to Krishna.
By Krishna, the enemies of the Devas (Asuras) were killed. Salutations to that Krishna.
From Krishna, has this entire world emanated. I am Krishna’s servant.
In Krishna stays this entire Universe. O Krishna, protect me!

This verse is from the Mukunda mala stotram. Note the use of all 8 cases of the noun कृष्ण , much like the Ramaraksha stotram