Avraham Wajnber, was the third Slonimer Rebber known as the Beish Avrohom. Named so after his seforim with the same name.

The Beis Avraham lived in Bialystok from the year 1917 till 1929. In Bialystok there was sizable community of Slonimer Chasidim. His father, The Divrei Shmuel passed away in 1916. in order not to infringe on his brother Reb Yissoschor Leib’s Rabistive, he chose not to live in the city of Slonim and instead moved to Bialystok in 1917. After his brother passed away, In 1928 there was an effort by his chasidimto build a permanent “hoif” for the Beis Avraham in Bialystok, however he declined and moved to the city of Baranovich in Belarus and continued his Rabistive there. 

He passed away in Slonim, while visiting there for his brothers fifth Yahrtzeit.