Being very angry and biting His reddish lips with His teeth, Kṛṣṇa, with false tears in His eyes, broke the container of yogurt with a piece of stone. Then He entered a room and began to eat the freshly churned butter in a solitary place.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सञ्जातकोपः स्फुरितारुणाधरं सन्दश्य दद्भिर्दधिमन्थभाजनम् । भित्त्वा मृषाश्रुर्दृषदश्मना रहो जघास हैयङ्गवमन्तरं गतः
sañjātakopaḥ sphuritāruṇādharaṃ sandaśya dadbhirdadhimanthabhājanam | bhittvā mṛṣāśrurdṛṣadaśmanā raho jaghāsa haiyaṅgavamantaraṃ gataḥ
SB 10.9.6