Bhagavata Purana 5.18.22
Srimad Bhagavatam · 18 · Verse 22
Sanskrit Original
मत्प्राप्तयेऽजेशसुरासुरादय- स्तप्यन्त उग्रं तप ऐन्द्रियेधिय: । ऋते भवत्पादपरायणान्न मां विन्दन्त्यहं त्वद्धृदया यतोऽजित ॥ २२ ॥
mat-prāptaye ’jeśa-surāsurādayas tapyanta ugraṁ tapa aindriye dhiyaḥ ṛte bhavat-pāda-parāyaṇān na māṁ vindanty ahaṁ tvad-dhṛdayā yato ’jita
O supreme unconquerable Lord, when they become absorbed in thoughts of material enjoyment, Lord Brahmā and Lord Śiva, as well as other demigods and demons, undergo severe penances and austerities to receive my benedictions. But I do not favor anyone, however great he may be, unless he is always engaged in the service of Your lotus feet. Because I always keep You within my heart, I cannot favor anyone but a devotee.