Devibhagavatapurana 1.5.19

1.5.19

tamuvāca tadā vamrī devadevasya māpateḥ |
nidrābhaṅgaḥ kathaṃ kāryo devasya jagatāṃ guroḥ ||

Hearing this order of Brahmâ, Vamrî spoke to Brahmâ, thus:-- “O Brahmân! How can I disturb the sleep of the Devadeva, Lord of Laksmî, the World Guru? To rouse one from one's deep sleep, to interrupt one in one's speech, to sever the love between a couple husband and wife, to separate a child from one's mother, all these are equivalent to Brahmâhatyâ (murdering a Brahmân). Therefore, O Deva! how can I interrupt the happiuess of sleep of the Devadeva? And what benefit shall I derive by eating the bowstring, so that I may incur this vicious act? But a man can commit a sin if there be any interest of his; I am ready to eat this, if I get a personal interest”.