Udyoga Parva, Adhyāya 101: Bhogavatī-varṇana, Nāga-vaṃśa-kathana, and Sumukha-vivāha-prastāva
सर्वकामदुघा नाम धेनुर्धारयते दिशम् । उत्तरां मातले धर्म्या तथैलविलसंज्ञिताम्,चौथी धेनुका नाम सर्वकामदुघा है। मातले! वह धर्मयुक्त कुबेरसम्बन्धिनी उत्तरदिशाका धारण-पोषण करती है
sarvakāmadughā nāma dhenur dhārayate diśam | uttarāṃ mātale dharmyāṃ tathailavilasaṃjñitām ||
นารทกล่าวว่า “โคผู้ให้สมปรารถนานามว่า ‘สรรพกามทุฆา’ ค้ำจุนทิศเหนือไว้ โอ มาตลี! ทิศเหนือนั้นเป็นทิศอันประกอบด้วยธรรม และมีนามว่า ‘ไอลวิละ’ อันเกี่ยวเนื่องกับท้าวกุเบร”
नारद उवाच
The verse links cosmic order with dharma: even the directions are portrayed as sustained by sacred forces, and the northern quarter is characterized as ‘dharmic’ and associated with Kubera’s realm—suggesting that prosperity and protection are grounded in righteous order.
Nārada addresses Mātali and describes a cosmological arrangement: a wish-fulfilling cow named Sarvakāmadughā is said to uphold the northern direction, which is also called Ailavila due to its connection with Kubera.