This question discusses the idea that certain practices (e.g., saying ashrei yoshvei [Tehilim 145] three times a day) guarantees a place in olam haba.
One common saying is that facilitating 3 shidduchim (matches between husband and wife) guarantees a place in olam haba?
It is often heard but I didn’t find any sources supporting it.
Any validity to this saying or is it folklore?