R. Solomon Leib ben Pesah Zevi Tabak (1832–1908), Hungarian posek. Born in Sziget of humble parents, R. Tabak was a pupil of R. Abraham Judah ha-Kohen Schwartz in Beregszasz. He served as head of the bet din of R. Jekuthiel Judah Teitelbaum (Yetiv Lev) and continued in that office for many years after Teitelbaum's death. He was the author of a number of books, all with the title Erekh Shai: a commentary on the four parts of the Shulhan Arukh (5 vols., 1891–1909); talmudic novellae (1910) on the Pentateuch (2 vols. 1912–1928) and on the Books of the Prophets and Hagiographa (1932); as well as two volumes of responsa, Teshurat Shai (2 vols., 1905–10). Nearly all his works were reprinted in a photocopy edition in New York from 1965 on.