tat tāmasam udāhṛtam

adesa-unpurified place; kale-unpurified time; yat-that which is; danam-charity; apatrebhyah-to unworthy persons; ca-also; diyate-is given; asatkrtam-without respect; avajnatam-without proper attention; tat-that; tamasam-in the mode of darkness; udahrtam-is said to be.