As long as Lord Śrī Kṛṣṇa, the husband of the goddess of fortune, touched the earth with His lotus feet, Kali was powerless to subdue this planet.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यावत्स पादपद्माभ्यां स्पृशन्नास्ते रमापतिः । तावत्कलिर्वै पृथिवीं पराक्रान्तुं न चाशकत्
yāvatsa pādapadmābhyāṃ spṛśannāste ramāpatiḥ | tāvatkalirvai pṛthivīṃ parākrāntuṃ na cāśakat
SB 12.2.30