My dear devotee, unto those who rise from bed at the end of night and offer Me the prayers offered by you, I give an eternal residence in the spiritual world at the end of their lives.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
ये मां स्तुवन्त्यनेनाङ्ग प्रतिबुध्य निशात्यये । तेषां प्राणात्यये चाहं ददामि विमलां मतिम्
ye māṃ stuvantyanenāṅga pratibudhya niśātyaye | teṣāṃ prāṇātyaye cāhaṃ dadāmi vimalāṃ matim
SB 8.4.25