Devibhagavatapurana 3.27.19

3.27.19

pūrvajanmani yairnūnaṃ na kṛtaṃ vratamuttamam |
te vyādhino daridrāśca bhavanti putravarjitāḥ ||

Those who did not, in their previous births, perform this meritorious vow, they become diseased, poor and devoid of sons in their present births.