وَأَمَّا السَّائِلَ فَلَا تَنْهَرْWaamma assaa-ila fala tanhar.
And as for the beggar, do not repel [him]. [Duha 93:10]
The word used in that verse is Nahr, and Nahr means River.
Sometimes, when beggars come to people and ask them for something - people push them aside and ignore them or maybe give abit of money.
However, there are another type of people - these people actually stop at the beggar and start pressurising them. They start ridiculing them, abusing them, and flooding them with insults. The beggar can't do nothing except stand there, whilst a gushing flow of humiliation is being poured upon him.
You can imagine this beggar standing in the middle of a fast flowing River (nahr), being pushed and flooded with the waves of Insults being poured at them.
..and as for the beggar, do not drive [him] away, [do not] repel him on account of his poverty.. (Tafseer Jalalayn [Duha 93:10])