Skandapurana 16.242.27

16.242.27

varaṃ vṛṇudhvaṃ bhadraṃ vo nityaṃ yanmanasi sthitam ..
ahaṃ dāsyāmi tatsarvaṃ yadyapi syātsudurllabham .. 27 ..

“Choose a boon, may good befall you, whatever is always in your mind. / I shall grant it all, even if it be extremely difficult to attain.”