Mudgalapurana 8.49.29

8.49.29

viśvātmakaṃ yasya śarīramekaṃ tasmācca vakraṃ paramātmarūpam |
tuṇḍaṃ tadevaṃ hi tayoḥ prayoge taṃ vakratuṇḍaṃ praṇamāmi nityam ||

Whose single body consists of the universe, and therefore is crooked (vakra); the mouth (tuṇḍa) is the form of the supreme self;
thus in the joining of the two, I bow eternally to that Vakratuṇḍa.