Bhagavatapurana 3.1.4

3.1.4

na hy alpārthodayas tasya vidurasyāmalātmanaḥ /
tasmin varīyasi praśnaḥ sādhu-vādopabṛṃhitaḥ //

4. For, the outcome of the query proposed by Vidura, pure in mind, to that great and worshipful sage, cannot be of small significance, especially (when) it is commended as a good enquiry by the wise (by Maitreya himself.)